26 Kasım 2018 tarihinde Wayback Machine sitesinde [https://web.archive.org/web/20181126094315/https://itunes.apple.com/us/album/summertime-sadness-lana-del/id672413494 arşivlendi. iTunes - Music - Summertime Sadness [Lana Del Rey vs. Cedric Gervais] (Cedric Gervais Remix) - Single by Lana Del Rey & Cedric Gervais]
"ČNS IFPI" (Çekçe). Hitparáda – Radio Top 100 Oficiální. IFPI Czech Republic. Note: Change the chart to CZ – RADIO – TOP 100 and insert 201310 into search. Erişim tarihi: 16 Ocak 2015.
"ČNS IFPI" (Çekçe). Hitparáda – Digital Top 100 Oficiální. IFPI Czech Republic. Note: Change the chart to CZ – SINGLES DIGITAL – TOP 100 and insert 201433 into search. Erişim tarihi: 16 Ocak 2015.
hitparadask.ifpicr.cz
"ČNS IFPI" (Slovakça). Hitparáda – Singles Digital Top 100 Oficiálna. IFPI Czech Republic. Note: Select SINGLES DIGITAL - TOP 100 and insert 201429 into search. Erişim tarihi: 16 Ocak 2015.
"ČNS IFPI" (in Slovak). Hitparáda – Radio Top 100 Oficiálna. IFPI Czech Republic. Note: insert 201336 into search. Erişim tarihi: 28 Temmuz 2013.