Source
edit- https://web.archive.org/web/20060528011352/http://www.pcgames.de/?product_id=93800
- https://web.archive.org/web/20051018070158/http://www.afjv.com/press0410/041012_sherlock_holmes_boucle_argent.htm
- https://web.archive.org/web/20051020180511/http://www.afjv.com/press0404/040528_nobilis.htm
- https://web.archive.org/web/20041011030157/http://www.games.tiscali.cz/interviews/sherlockholmes/index.asp
- https://web.archive.org/web/20040717010408/http://pc.ign.com:80/articles/530/530309p1.html
- https://web.archive.org/web/20050326091113/http://www.dtp-ag.com:80/presse/news.php?id=187
- https://web.archive.org/web/20050207174415/http://www.sherlockholmes-game.de:80/news_archiv.php
- https://web.archive.org/web/20050207175729/http://www.sherlockholmes-game.de:80/presse.php
- https://web.archive.org/web/20041103014012/http://www.sherlockholmes-game.de:80/interview.php
- https://web.archive.org/web/20160303230649/http://www.planete-aventure.net/article.php?id=61
- https://web.archive.org/web/20030716101240/http://justadventure.com:80/Previews/journeytocenterofearth/
- https://web.archive.org/web/20050204173443/http://www.ptgamers.com:80/artigo.asp?id_artigo=76
- https://web.archive.org/web/20070820085107/http://www.adventure-treff.de:80/artikel/interviews.php?id=25&lang=eng
- https://web.archive.org/web/20071024172751/http://pc.gamespy.com:80/pc/adventures-of-sherlock-holmes-the-silver-earring/
- https://web.archive.org/web/20171115092445/http://www.gameswelt.de/frogwares/special/special,4870
- https://web.archive.org/web/20171115092742/http://www.gameswelt.de/dtp-entertainment/special/special,4869
- https://web.archive.org/web/20041207044005/http://www.justadventure.com:80/Interviews/FrogwaresCEOWaelAmr/WaelAmr.shtm
- https://web.archive.org/web/20081005200307/http://www.planete-aventure.net/article.php?id=61
- https://web.archive.org/web/20150401193603/http://www.adventure-treff.de/artikel/interviews.php?id=25
- https://web.archive.org/web/20040804101425/http://www.ggmania.com:80/full.php3?show=5658
- https://web.archive.org/web/20040608151033/http://www.sector.sk/clanok.asp?id=12561
- https://web.archive.org/web/20050223062323/http://www.justadventure.com:80/Interviews/DTP/DTP.shtm
- https://web.archive.org/web/20060407082037/http://www.justadventure.com:80/Previews/SherlockEarring/SherlockEarring.shtm