日立轨道（意大利）无人驾驶地铁列车 (Chinese Wikipedia)

Attiko Metro S.A. Ιστορικό [History]. www.ametro.gr. [2018-08-17]. （原始内容存档于2018-08-13）（希腊语）.
Technical Description (PDF), Attiko Metro S.A., 2014-12-01 [2020-02-06], （原始内容存档 (PDF)于2018-09-11）
Attiko Metro S.A. Funding. www.ametro.gr. [2018-06-05]. （原始内容存档于2021-02-28）.

andina.com.pe

Metro Line 2 will operate with driverless trains and will be 100 % automated. Andina. 2014-04-28 [2016-03-27]. （原始内容存档于2018-01-08）（西班牙语）.

ansaldobreda.it

AnsaldoBreda. Driverless metros (PDF). [2010-11-04]. （原始内容 (PDF)存档于2013-09-27）.

archive.today

Brescia To Build Automated Metro. International Railway Journal. June 2000 [2009-11-17]. （原始内容存档于2012-06-30）.

arcspace.com

Copenhagen Metro. Arcspace. [2009-11-15]. （原始内容存档于2009-07-30）.

civilbeat.org

Why Is Hawaii Soft On Human Trafficking?. Honolulu Civil Beat. 2010-06-16 [2020-02-06]. （原始内容存档于2021-02-05）.

findarticles.com

Union Switch and Signal. Find Articles. March 2007 [2009-11-17]. ^{[失效連結]}
Brescia To Build Automated Metro. International Railway Journal. June 2000 [2009-11-17]. （原始内容存档于2012-06-30）.
Ansaldobreda unveiled the first of 18 metro trains for the first metro line in the Italian city of Brescia. International Railway Journal. July 2009 [2009-11-17]. ^{[失效連結]}
Milan Metro. Railway Age. March 2007 [2009-11-17]. ^{[失效連結]}
500 million [euro] Italian metro deal. International Railway Journal. April 2006 [2009-11-17]. （原始内容存档于2016-01-10）.
Ansaldo secures Taipei contract. Find Articles. April 2009 [2009-11-17]. ^{[失效連結]}

focustaiwan.tw

Lee Hsin-Yin. First section of MRT Circular Line gets approval to begin operations. Focus Taiwan CNA English News (Central News Agency (Republic of China)). 2020-01-16 [2020-01-23]. （原始内容存档于2021-02-04）.

hitachirail.com

italy.hitachirail.com

Salonicco. Hitachi Rail Italy. [2018-09-11]. （原始内容存档于2020-07-02）（英语）.

jernbaneklub.dk

Haas, Torkil. En mini-metro med maksimal virkning (PDF). Jernbanen. 2002, (2): 52–53. （原始内容 (PDF)存档于2011-07-19）（丹麦语）.
Jensen, Tommy O. Bag om metroen (PDF). Jernbanen. 2002, (5): 32–41. （原始内容 (PDF)存档于2011-07-19）（丹麦语）.

metrocspa.it

Treni driverless. Rome Metro. [2009-11-14]. （原始内容存档于2008-08-04）（意大利语）.

metroxroma.it

Apertura Linea C, già 2 anni di ritardo. 2013-02-13 [2020-02-06]. （原始内容存档于2015-03-26）.

myldretid.dk

de Laine, Thomas. København har verdens bedste metro. Myldretid. 2008-04-02 [2009-11-15]. （原始内容存档于2014-04-08）（丹麦语）.

railwaygazette.com

Andy Hellawell. Princess Nora Bint Abdul Rahman University driverless metro opens. Railway Gazette International. 2012-08-21 [2020-02-06]. （原始内容存档于2013-01-16）.
Andy Hellawell. Princess Nora Bint Abdul Rahman University driverless metro opens. Railway Gazette International. 2012-08-21 [2020-02-06]. （原始内容存档于2013-01-16）.

staradvertiser.com

Park, Gene, Have a seat, Honolulu Star-Advertiser 130 (50), 2011-03-22: A1, A6 [2013-11-07], （原始内容存档于2014-08-08）

web.archive.org

Andy Hellawell. Princess Nora Bint Abdul Rahman University driverless metro opens. Railway Gazette International. 2012-08-21 [2020-02-06]. （原始内容存档于2013-01-16）.
AnsaldoBreda. Driverless metros (PDF). [2010-11-04]. （原始内容 (PDF)存档于2013-09-27）.
Copenhagen Metro. Arcspace. [2009-11-15]. （原始内容存档于2009-07-30）.
Haas, Torkil. En mini-metro med maksimal virkning (PDF). Jernbanen. 2002, (2): 52–53. （原始内容 (PDF)存档于2011-07-19）（丹麦语）.
Treni driverless. Rome Metro. [2009-11-14]. （原始内容存档于2008-08-04）（意大利语）.
Attiko Metro S.A. Ιστορικό [History]. www.ametro.gr. [2018-08-17]. （原始内容存档于2018-08-13）（希腊语）.
Jensen, Tommy O. Bag om metroen (PDF). Jernbanen. 2002, (5): 32–41. （原始内容 (PDF)存档于2011-07-19）（丹麦语）.
de Laine, Thomas. København har verdens bedste metro. Myldretid. 2008-04-02 [2009-11-15]. （原始内容存档于2014-04-08）（丹麦语）.
Park, Gene, Have a seat, Honolulu Star-Advertiser 130 (50), 2011-03-22: A1, A6 [2013-11-07], （原始内容存档于2014-08-08）
Why Is Hawaii Soft On Human Trafficking?. Honolulu Civil Beat. 2010-06-16 [2020-02-06]. （原始内容存档于2021-02-05）.
Metro Line 2 will operate with driverless trains and will be 100 % automated. Andina. 2014-04-28 [2016-03-27]. （原始内容存档于2018-01-08）（西班牙语）.
500 million [euro] Italian metro deal. International Railway Journal. April 2006 [2009-11-17]. （原始内容存档于2016-01-10）.
Andy Hellawell. Princess Nora Bint Abdul Rahman University driverless metro opens. Railway Gazette International. 2012-08-21 [2020-02-06]. （原始内容存档于2013-01-16）.
Apertura Linea C, già 2 anni di ritardo. 2013-02-13 [2020-02-06]. （原始内容存档于2015-03-26）.
Lee Hsin-Yin. First section of MRT Circular Line gets approval to begin operations. Focus Taiwan CNA English News (Central News Agency (Republic of China)). 2020-01-16 [2020-01-23]. （原始内容存档于2021-02-04）.
Technical Description (PDF), Attiko Metro S.A., 2014-12-01 [2020-02-06], （原始内容存档 (PDF)于2018-09-11）
Attiko Metro S.A. Funding. www.ametro.gr. [2018-06-05]. （原始内容存档于2021-02-28）.
Salonicco. Hitachi Rail Italy. [2018-09-11]. （原始内容存档于2020-07-02）（英语）.