黯黑史詩 (Chinese Wikipedia)

Zed, Natalie. Epica - Requiem for the Indifferent review. Heavy Metal. About.com. [2012-10-05]. （原始内容存档于2012-09-08）.
Bowar, Chad. The Divine Conspiracy Review. About.com. [2008-03-30]. （原始内容存档于2015-11-06）.

allmusic.com

Epica The Phantom Agony Overview. Allmusic. [2017-05-29]. （原始内容存档于2013-03-15）.
Monger, James Christopher. Epica Requiem for the Indifferent review. Allmusic. Rovi Corporation. [2012-10-05]. （原始内容存档于2021-05-08）.
Rivadavia, Eduardo. Consign to Oblivion Review. Allmusic. [2008-03-30].
Rivadavia, Eduardo. Divine Conspiracy Review. Allmusic.com. [2008-03-30].
Rivadavia, Eduardo. The Phantom Agony Review. Allmusic.com. [2008-03-30].

alternative-zine.com

Vayner, Ofer. Interview with Mark Jensen of Epica. Alternative-zine.com. [2008-03-30]. （原始内容存档于2015-11-06）.

anewagedawns.com.br

Simone Simons : A New Age Dawns – Fã Clube Oficial Brasileiro do Epica. Anewagedawns.com.br. [2012-11-18]. （原始内容存档于2013-09-27）.

archive.today

Epica. billboard.com. [2017-05-30]. （原始内容存档于2016-10-12）.
EPICA: New Album Release Party Announced. Blabbermouth.net. 2011-07-31 [2011-08-18]. （原始内容存档于2012-09-12）.
PRE-ORDER EPICA'S RETROSPECT. Epica. 2013-09-24 [2014-05-18]. （原始内容存档于2014-05-18）.
EPICA To Release 'The Holographic Principle' Album In October. BLABBERMOUTH.NET. 2016-05-31 [2016-06-02]. （原始内容存档于2016-06-01）（美国英语）.
SpazioRock - Interviste - Epica (Mark Jansen). SpazioRock. [2017-05-30]. （原始内容存档于2012-09-10）.
Epica (Mark Jansen). TrueMetal. [2017-05-30]. （原始内容存档于2014-04-28）.

ashladan.be

Epica - The Quantum Enigma | Ashladan. [2017-05-30]. （原始内容存档于2014-04-29）.

axs.com

5 things you didn't know about Epica. AXS（英语：AXS (company)）. 2017-04-27 [2017-05-29]. （原始内容存档于2019-04-17）.

billboard.com

Epica. billboard.com. [2017-05-30]. （原始内容存档于2016-10-12）.

blabbermouth.net

EPICA To Release 'The Holographic Principle' Album In October. BLABBERMOUTH.NET. 2016-05-31 [2016-06-02]. （原始内容存档于2016-06-01）（美国英语）.

douban.com

site.douban.com

量子波動交響曲——荷蘭著名交響金屬樂團EPICA的史詩之旅. 《重型音樂》雜誌. 2016-04-10 [2017-05-30]. （原始内容存档于2020-10-24）.

dutchcharts.nl

Hung, Steffen. Epica - The Phantom Agony. 荷蘭專輯排行榜（英语：Dutch Albums Chart）. [2017-05-30]. （原始内容存档于2017-11-11）.
Epica - The Divine Conspiracy. MegaCharts. [2017-05-29]. （原始内容存档于2012-03-16）.
Epica - Design Your Universe (Album) （页面存档备份，存于互联网档案馆）荷蘭專輯排行榜. [2009-10-23]
Epica - Design Your Universe (album). Dutch Charts. Media Control. [2012-10-06]. （原始内容存档于2012-11-10）（荷兰语）.

epica.nl

Requiem for the Indifferent - Chart positions / News / Epica. Epica.nl. 2012-03-21 [2013-11-28]. （原始内容存档于2013-12-03）.
EPICA – 'The Quantum Enigma' – Cover Art, Release Date + Tracklisting Revealed - Epica Official Website. epica.nl. [2017-05-30]. （原始内容存档于2018-08-26）.
EPICA Receives Dutch Music Export Award! - Epica Official Website. epica.nl. [2017-05-30]. （原始内容存档于2020-06-02）.
Epica Online. Epica.nl. 2006-01-21 [2012-02-13]. （原始内容存档于2018-08-08）.
EPICA: New Album Release Date. [2008-06-26]. （原始内容存档于2020-03-15）.
Epica. Epica.nl. [2012-11-18]. （原始内容存档于2020-03-15）.
EPICA - Retrospect - 10th anniversary. epica.nl. 2012-09-13 [2013-06-22]. （原始内容存档于2013-12-03）.
RETROSPECT - release date, cover-artwork and track-listing revealed. epica.nl. 2013-08-23 [2013-11-24]. （原始内容存档于2013-11-12）.
PRE-ORDER EPICA'S RETROSPECT. Epica. 2013-09-24 [2014-05-18]. （原始内容存档于2014-05-18）.
First Details of New Album Announced! - Epica Official Website. epica.nl. [2017-05-30]. （原始内容存档于2018-08-26）.
"The Essence of Silence" – Released - Epica Official Website. epica.nl. [2017-05-30]. （原始内容存档于2018-08-26）.
"The Essence of Silence" – Lyric Video - Epica Official Website. epica.nl. [2017-05-30]. （原始内容存档于2018-04-14）.
"Unchain Utopia" – Available Now! - Epica Official Website. epica.nl. [2017-05-30]. （原始内容存档于2018-08-26）.
EPICA Premieres the Music Video for "Victims of Contingency". epica.nl. [2017-05-30]. （原始内容存档于2020-06-02）.
EPICA Announces EPIC METAL FEST - Epica Official Website. epica.nl. [2017-05-30]. （原始内容存档于2020-06-02）.
EPIC METAL FEST Holland Announced - Epica Official Website. www.epica.nl. [2016-06-02]. （原始内容存档于2020-11-08）.
"The Holographic Principle" Tracklisting Revealed! - EPICA Official Website - THE HOLOGRAPHIC PRINCIPLE out now!. Epica.nl. 2016-06-17 [2017-04-15]. （原始内容存档于2020-09-29）.
EPICA Announces The North American Principle Tour! - EPICA Official Website - THE HOLOGRAPHIC PRINCIPLE out now!. Epica.nl. 2016-06-27 [2017-04-15]. （原始内容存档于2020-11-08）.
EPICA / POWERWOLF European Tour Announced - EPICA Official Website - THE HOLOGRAPHIC PRINCIPLE out now!. Epica.nl. [2017-04-15]. （原始内容存档于2020-09-29）.
Tour Archive - EPICA Official Website - THE HOLOGRAPHIC PRINCIPLE out now!. Epica.nl. [2017-04-15]. （原始内容存档于2021-04-17）.
Upcoming Shows - EPICA Official Website - THE HOLOGRAPHIC PRINCIPLE out now!. Epica.nl. [2017-04-15]. （原始内容存档于2021-04-17）.

epicmetalfest.com

EPIC METAL FEST Netherlands Aftermovie. EPIC METAL FEST. [2017-05-30]. （原始内容存档于2020-01-22）.

facebook.com

Nightwish (Comunidade Branca). Facebook. [2012-11-18]. （原始内容存档于2017-05-17）.
The new Epica video.... Facebook. [2012-11-18]. （原始内容存档于2015-11-06）.

idiomag.com

idio - Content Intelligence. idio. [2009-10-22]. （原始内容存档于2012-02-16）.
EPICA: New Album Title Revealed?. idiomag（英语：idiomag）. 2009-04-20 [2009-04-26]. （原始内容存档于2014-12-17）.

kamelot.com

張書劍. Poetry for the Poisoned Cover, Editions, Tracklist And Guests Confirmed. kamelot.com. 2010-08-10 [2015-06-25]. （原始内容存档于2020-08-24）.

lagrosseradio.com

Epica - The Quantum Enigma - Chronique - La Grosse Radio Metal - Ecouter du Metal - Webzine Metal. [2017-05-30]. （原始内容存档于2014-04-29）.

listal.com

存档副本. [2017-05-30]. （原始内容存档于2012-11-29）.

lordsofmetal.nl

Van der Wal, Kim. The Divine Conspiracy Review. Lordsofmetal.nl. [2008-03-30]. （原始内容存档于2011-09-27）.

loudwire.com

Epica Bassist Leaves Band. Loudwire（英语：Loudwire）. 2012-03-25 [2013-11-28]. （原始内容存档于2019-02-27）.

metal-archives.com

Epica (Nld) - The Phantom Agony. Encyclopaedia Metallum（英语：Encyclopaedia Metallum）. [2010-05-10]. （原始内容存档于2011-04-04）.
Encyclopaedia Metallum - Epica. Encyclopaedia Metallum. [2017-05-29]. （原始内容存档于2021-01-30）.
Forevermore. Metal-Archives.com. [2015-06-25]. （原始内容存档于2019-04-25）.

metal.de

Metal.de (编). Epica - Zuviel gibt es für EPICA nicht: Die Listening-Session zu "The Holographic Principle". 2016-08-07 [2017-05-30]. （原始内容存档于2019-01-05）.

metalfan.nl

Metalfan.nl Review: Sahara Dust - Cry For The Moon. Metalfan.nl. 2003-02-12 [2017-05-30]. （原始内容存档于2017-12-25）.
Metalfan.nl Concertreview: Epica en Kingfisher Sky in Amsterdam. Metalfan.nl. 2009-10-11 [2017-05-30]. （原始内容存档于2017-11-11）.

metalitalia.com

MetalItalia.com (编). EPICA: il nuovo album "The Holographic Principle" traccia per traccia e intervista a Simone Simons!. 2016-07-28 [2017-05-30]. （原始内容存档于2021-01-21）.

metalreview.com

Fox, Keith. The Divine Conspiracy Review. Metalreview.com. [2008-03-30]. （原始内容存档于2008-03-02）.

metalscript.net

Epica: "Music is always a result of other music". Interview. Metalscript.Net. 2013-02-16 [2013-11-28]. （原始内容存档于2020-06-02）.

metalstorm.ee

Epica - Metal Storm. Metal Storm. [2009-10-22]. （原始内容存档于2010-03-11）.
Epica - Consign To Oblivion - Metal Storm. Metal Storm. [2009-10-22]. （原始内容存档于2008-02-21）.
Kamelot - The Black Halo - Metal Storm. metalstorm.ee. [2009-10-22]. （原始内容存档于2008-03-17）.

metalunderground.com

Epica Announces North American Tour with Scar Symmetry, Mutiny Within and Blackguard （页面存档备份，存于互联网档案馆） metalunderground.com. 2010-05-09.[2010-05-15]
Recensione di "Requiem for the Indifferent" su Metal Underground. [2017-05-30]. （原始内容存档于2012-09-08）.

musicaldiscoveries.com

Epica | The Phantom Agony progressive metal with operatic vocals album review and artist reflections （页面存档备份，存于互联网档案馆） 2004-03-02 [2017-05-29]
Epica Consign To Oblivion reviews and artist reflections （页面存档备份，存于互联网档案馆） 2005-08-21 [2017-05-29]
Simons interview, 2008. [2015-06-25]. （原始内容存档于2019-09-08）.
Epica The Divine Conspiracy. [2008-11-11]. （原始内容存档于2019-09-08）.

musicmight.com

Epica biography （页面存档备份，存于互联网档案馆） musicmight.com. Retrieved on 2011-09-08.

nuclearblast.de

EPICA - release charity single for WWF! （页面存档备份，存于互联网档案馆）核爆唱片（英语：Nuclear Blast） 2010-09-28. [2015-06-25]
Tour dates EPICA （页面存档备份，存于互联网档案馆） [2017-05-29]

rafabasa.com

Crítica del CD de EPICA - The Quantum Enigma | WWW.RAFABASA.COM - Noticias en español sobre el heavy metal y los grupos de heavy metal. [2017-05-30]. （原始内容存档于2015-11-17）.

roadrunnerrecords.com

Epica Guitarist Ad Sluijter Quits. Blabbermouth.net（英语：Blabbermouth.net）. Roadrunner Records（英语：Roadrunner Records）. 2008-12-16 [2011-08-22]. （原始内容存档于2009-02-16）.
EPICA To Release 'The Classical Conspiracy' Double Live Album. Blabbermouth.net（英语：Blabbermouth.net）. 2009-03-12 [2009-03-14]. （原始内容存档于2009-04-06）.
EPICA: New Album Release Party Announced. Blabbermouth.net. 2011-07-31 [2011-08-18]. （原始内容存档于2012-09-12）.

rockeyez.com

Rademacher, Brian. Interview with Simone Simons of Epica. Rockeyez.com. [2008-03-30]. （原始内容存档于2020-01-12）.

setlist.fm

Epica Concert Setlist at Klokgebouw, Eindhoven on March 23, 2013. setlist.fm. [2013-11-28]. （原始内容存档于2021-03-16）.

spaziorock.it

SpazioRock - Interviste - Epica (Mark Jansen). SpazioRock. [2017-05-30]. （原始内容存档于2012-09-10）.

teamrock.com

Epica's track by track guide to The Holographic Principle. 2016-09-23 [2016-09-29]. （原始内容存档于2018-03-11）.

thisisnotascene.com

Epica - The Quantum Enigma » ThisIsNotAScene - Music Reviews, Interviews & News. [2017-05-30]. （原始内容存档于2015-11-17）.

truemetal.it

TrueMetal.it (编). Epica (Mark Jansen & Simone Simons). 2014-05-27 [2017-05-30]. （原始内容存档于2017-08-11）.
Epica (Mark Jansen). TrueMetal. [2017-05-30]. （原始内容存档于2014-04-28）.

twitter.com

Epica on Twitter. Twitter. [2016-06-03]. （原始内容存档于2017-06-07）.

web.archive.org

5 things you didn't know about Epica. AXS（英语：AXS (company)）. 2017-04-27 [2017-05-29]. （原始内容存档于2019-04-17）.
Epica biography （页面存档备份，存于互联网档案馆） musicmight.com. Retrieved on 2011-09-08.
Requiem for the Indifferent - Chart positions / News / Epica. Epica.nl. 2012-03-21 [2013-11-28]. （原始内容存档于2013-12-03）.
EPICA – 'The Quantum Enigma' – Cover Art, Release Date + Tracklisting Revealed - Epica Official Website. epica.nl. [2017-05-30]. （原始内容存档于2018-08-26）.
Hung, Steffen. Epica - The Phantom Agony. 荷蘭專輯排行榜（英语：Dutch Albums Chart）. [2017-05-30]. （原始内容存档于2017-11-11）.
EPICA Receives Dutch Music Export Award! - Epica Official Website. epica.nl. [2017-05-30]. （原始内容存档于2020-06-02）.
Epica on Twitter. Twitter. [2016-06-03]. （原始内容存档于2017-06-07）.
Epica - Metal Storm. Metal Storm. [2009-10-22]. （原始内容存档于2010-03-11）.
Simone Simons : A New Age Dawns – Fã Clube Oficial Brasileiro do Epica. Anewagedawns.com.br. [2012-11-18]. （原始内容存档于2013-09-27）.
Metalfan.nl Review: Sahara Dust - Cry For The Moon. Metalfan.nl. 2003-02-12 [2017-05-30]. （原始内容存档于2017-12-25）.
Epica (Nld) - The Phantom Agony. Encyclopaedia Metallum（英语：Encyclopaedia Metallum）. [2010-05-10]. （原始内容存档于2011-04-04）.
Epica | The Phantom Agony progressive metal with operatic vocals album review and artist reflections （页面存档备份，存于互联网档案馆） 2004-03-02 [2017-05-29]
量子波動交響曲——荷蘭著名交響金屬樂團EPICA的史詩之旅. 《重型音樂》雜誌. 2016-04-10 [2017-05-30]. （原始内容存档于2020-10-24）.
Epica Consign To Oblivion reviews and artist reflections （页面存档备份，存于互联网档案馆） 2005-08-21 [2017-05-29]
Epica - Consign To Oblivion - Metal Storm. Metal Storm. [2009-10-22]. （原始内容存档于2008-02-21）.
Kamelot - The Black Halo - Metal Storm. metalstorm.ee. [2009-10-22]. （原始内容存档于2008-03-17）.
Encyclopaedia Metallum - Epica. Encyclopaedia Metallum. [2017-05-29]. （原始内容存档于2021-01-30）.
Simons interview, 2008. [2015-06-25]. （原始内容存档于2019-09-08）.
存档副本. [2017-05-30]. （原始内容存档于2012-11-29）.
Epica Guitarist Ad Sluijter Quits. Blabbermouth.net（英语：Blabbermouth.net）. Roadrunner Records（英语：Roadrunner Records）. 2008-12-16 [2011-08-22]. （原始内容存档于2009-02-16）.
idio - Content Intelligence. idio. [2009-10-22]. （原始内容存档于2012-02-16）.
EPICA To Release 'The Classical Conspiracy' Double Live Album. Blabbermouth.net（英语：Blabbermouth.net）. 2009-03-12 [2009-03-14]. （原始内容存档于2009-04-06）.
Metalfan.nl Concertreview: Epica en Kingfisher Sky in Amsterdam. Metalfan.nl. 2009-10-11 [2017-05-30]. （原始内容存档于2017-11-11）.
Epica - Design Your Universe (Album) （页面存档备份，存于互联网档案馆）荷蘭專輯排行榜. [2009-10-23]
Epica - Design Your Universe (album). Dutch Charts. Media Control. [2012-10-06]. （原始内容存档于2012-11-10）（荷兰语）.
EPICA: New Album Title Revealed?. idiomag（英语：idiomag）. 2009-04-20 [2009-04-26]. （原始内容存档于2014-12-17）.
EPICA - release charity single for WWF! （页面存档备份，存于互联网档案馆）核爆唱片（英语：Nuclear Blast） 2010-09-28. [2015-06-25]
Epica Announces North American Tour with Scar Symmetry, Mutiny Within and Blackguard （页面存档备份，存于互联网档案馆） metalunderground.com. 2010-05-09.[2010-05-15]
Epica Online. Epica.nl. 2006-01-21 [2012-02-13]. （原始内容存档于2018-08-08）.
張書劍. Poetry for the Poisoned Cover, Editions, Tracklist And Guests Confirmed. kamelot.com. 2010-08-10 [2015-06-25]. （原始内容存档于2020-08-24）.
Nightwish (Comunidade Branca). Facebook. [2012-11-18]. （原始内容存档于2017-05-17）.
EPICA: New Album Release Date. [2008-06-26]. （原始内容存档于2020-03-15）.
Epica Bassist Leaves Band. Loudwire（英语：Loudwire）. 2012-03-25 [2013-11-28]. （原始内容存档于2019-02-27）.
The new Epica video.... Facebook. [2012-11-18]. （原始内容存档于2015-11-06）.
Epica. Epica.nl. [2012-11-18]. （原始内容存档于2020-03-15）.
Monger, James Christopher. Epica Requiem for the Indifferent review. Allmusic. Rovi Corporation. [2012-10-05]. （原始内容存档于2021-05-08）.
Forevermore. Metal-Archives.com. [2015-06-25]. （原始内容存档于2019-04-25）.
EPICA - Retrospect - 10th anniversary. epica.nl. 2012-09-13 [2013-06-22]. （原始内容存档于2013-12-03）.
Epica: "Music is always a result of other music". Interview. Metalscript.Net. 2013-02-16 [2013-11-28]. （原始内容存档于2020-06-02）.
Epica Concert Setlist at Klokgebouw, Eindhoven on March 23, 2013. setlist.fm. [2013-11-28]. （原始内容存档于2021-03-16）.
RETROSPECT - release date, cover-artwork and track-listing revealed. epica.nl. 2013-08-23 [2013-11-24]. （原始内容存档于2013-11-12）.
Tour dates EPICA （页面存档备份，存于互联网档案馆） [2017-05-29]
First Details of New Album Announced! - Epica Official Website. epica.nl. [2017-05-30]. （原始内容存档于2018-08-26）.
"The Essence of Silence" – Released - Epica Official Website. epica.nl. [2017-05-30]. （原始内容存档于2018-08-26）.
"The Essence of Silence" – Lyric Video - Epica Official Website. epica.nl. [2017-05-30]. （原始内容存档于2018-04-14）.
"Unchain Utopia" – Available Now! - Epica Official Website. epica.nl. [2017-05-30]. （原始内容存档于2018-08-26）.
EPICA Premieres the Music Video for "Victims of Contingency". epica.nl. [2017-05-30]. （原始内容存档于2020-06-02）.
EPICA Announces EPIC METAL FEST - Epica Official Website. epica.nl. [2017-05-30]. （原始内容存档于2020-06-02）.
Spark TV, SPARK TV: EPICA - interview with Simone Simons - new album 2016, 2016-05-31 [2016-06-02], （原始内容存档于2019-09-24）
EPIC METAL FEST Holland Announced - Epica Official Website. www.epica.nl. [2016-06-02]. （原始内容存档于2020-11-08）.
Epica's track by track guide to The Holographic Principle. 2016-09-23 [2016-09-29]. （原始内容存档于2018-03-11）.
"The Holographic Principle" Tracklisting Revealed! - EPICA Official Website - THE HOLOGRAPHIC PRINCIPLE out now!. Epica.nl. 2016-06-17 [2017-04-15]. （原始内容存档于2020-09-29）.
EPIC METAL FEST Netherlands Aftermovie. EPIC METAL FEST. [2017-05-30]. （原始内容存档于2020-01-22）.
EPICA Announces The North American Principle Tour! - EPICA Official Website - THE HOLOGRAPHIC PRINCIPLE out now!. Epica.nl. 2016-06-27 [2017-04-15]. （原始内容存档于2020-11-08）.
EPICA / POWERWOLF European Tour Announced - EPICA Official Website - THE HOLOGRAPHIC PRINCIPLE out now!. Epica.nl. [2017-04-15]. （原始内容存档于2020-09-29）.
Tour Archive - EPICA Official Website - THE HOLOGRAPHIC PRINCIPLE out now!. Epica.nl. [2017-04-15]. （原始内容存档于2021-04-17）.
Upcoming Shows - EPICA Official Website - THE HOLOGRAPHIC PRINCIPLE out now!. Epica.nl. [2017-04-15]. （原始内容存档于2021-04-17）.
Crítica del CD de EPICA - The Quantum Enigma | WWW.RAFABASA.COM - Noticias en español sobre el heavy metal y los grupos de heavy metal. [2017-05-30]. （原始内容存档于2015-11-17）.
Epica - The Quantum Enigma - Chronique - La Grosse Radio Metal - Ecouter du Metal - Webzine Metal. [2017-05-30]. （原始内容存档于2014-04-29）.
Epica The Divine Conspiracy. [2008-11-11]. （原始内容存档于2019-09-08）.
Epica - The Quantum Enigma | Ashladan. [2017-05-30]. （原始内容存档于2014-04-29）.
Epica - The Quantum Enigma » ThisIsNotAScene - Music Reviews, Interviews & News. [2017-05-30]. （原始内容存档于2015-11-17）.
MetalItalia.com (编). EPICA: il nuovo album "The Holographic Principle" traccia per traccia e intervista a Simone Simons!. 2016-07-28 [2017-05-30]. （原始内容存档于2021-01-21）.
Epica – The Holographic. 2016-08-10 [2017-05-30]. （原始内容存档于2017-10-09）.
TrueMetal.it (编). Epica (Mark Jansen & Simone Simons). 2014-05-27 [2017-05-30]. （原始内容存档于2017-08-11）.
Metal.de (编). Epica - Zuviel gibt es für EPICA nicht: Die Listening-Session zu "The Holographic Principle". 2016-08-07 [2017-05-30]. （原始内容存档于2019-01-05）.
Bowar, Chad. The Divine Conspiracy Review. About.com. [2008-03-30]. （原始内容存档于2015-11-06）.
Cursed With Oblivion. Interview with Mark Jansen, Simone Simons and Ad Sluijter of Epica. Xs4all.nl/~cursed. [2008-03-30]. （原始内容存档于2008-01-16）.
Rademacher, Brian. Interview with Simone Simons of Epica. Rockeyez.com. [2008-03-30]. （原始内容存档于2020-01-12）.
Vayner, Ofer. Interview with Mark Jensen of Epica. Alternative-zine.com. [2008-03-30]. （原始内容存档于2015-11-06）.
Van der Wal, Kim. The Divine Conspiracy Review. Lordsofmetal.nl. [2008-03-30]. （原始内容存档于2011-09-27）.
Fox, Keith. The Divine Conspiracy Review. Metalreview.com. [2008-03-30]. （原始内容存档于2008-03-02）.
Simone confirms to be a soprano. 2014-04-08 [2017-05-30]. （原始内容存档于2020-10-05）.

webcitation.org

Epica The Phantom Agony Overview. Allmusic. [2017-05-29]. （原始内容存档于2013-03-15）.
Epica - The Divine Conspiracy. MegaCharts. [2017-05-29]. （原始内容存档于2012-03-16）.
Zed, Natalie. Epica - Requiem for the Indifferent review. Heavy Metal. About.com. [2012-10-05]. （原始内容存档于2012-09-08）.
Recensione di "Requiem for the Indifferent" su Metal Underground. [2017-05-30]. （原始内容存档于2012-09-08）.

welovemetal.com

Epica – The Holographic. 2016-08-10 [2017-05-30]. （原始内容存档于2017-10-09）.

wikipedia.org

en.wikipedia.org

5 things you didn't know about Epica. AXS（英语：AXS (company)）. 2017-04-27 [2017-05-29]. （原始内容存档于2019-04-17）.
Hung, Steffen. Epica - The Phantom Agony. 荷蘭專輯排行榜（英语：Dutch Albums Chart）. [2017-05-30]. （原始内容存档于2017-11-11）.
Della Cioppa, Gianni. Heavy metal: i contemporanei. Giunti Editore（英语：Giunti Editore）. 2010. ISBN 978-8809749627.
Epica (Nld) - The Phantom Agony. Encyclopaedia Metallum（英语：Encyclopaedia Metallum）. [2010-05-10]. （原始内容存档于2011-04-04）.
Epica Guitarist Ad Sluijter Quits. Blabbermouth.net（英语：Blabbermouth.net）. Roadrunner Records（英语：Roadrunner Records）. 2008-12-16 [2011-08-22]. （原始内容存档于2009-02-16）.
EPICA To Release 'The Classical Conspiracy' Double Live Album. Blabbermouth.net（英语：Blabbermouth.net）. 2009-03-12 [2009-03-14]. （原始内容存档于2009-04-06）.
EPICA: New Album Title Revealed?. idiomag（英语：idiomag）. 2009-04-20 [2009-04-26]. （原始内容存档于2014-12-17）.
EPICA - release charity single for WWF! （页面存档备份，存于互联网档案馆）核爆唱片（英语：Nuclear Blast） 2010-09-28. [2015-06-25]
Epica Bassist Leaves Band. Loudwire（英语：Loudwire）. 2012-03-25 [2013-11-28]. （原始内容存档于2019-02-27）.

xs4all.nl

Cursed With Oblivion. Interview with Mark Jansen, Simone Simons and Ad Sluijter of Epica. Xs4all.nl/~cursed. [2008-03-30]. （原始内容存档于2008-01-16）.

youtube.com

YouTube上的Ruurd Woltring feat. Epica - Forevermore
Spark TV, SPARK TV: EPICA - interview with Simone Simons - new album 2016, 2016-05-31 [2016-06-02], （原始内容存档于2019-09-24）
YouTube上的SPARK TV: EPICA - interview with Mark Jansen about upcoming new album "The Holographic Principle"
Simone confirms to be a soprano. 2014-04-08 [2017-05-30]. （原始内容存档于2020-10-05）.