- filmix.biz person/ralf-rikermann
- timefox.org person/ralf-rikermann-189708
- ru.kinorium.com name/997227/info/
- http://kinokach.com persony/germany/569418-ralph-…
- hdrezka.in person/60979-ralf-rikermann/
- likefilmdb.ru people/ralph-rieckermann-137504/
İngilizceden çevrildi
- rezka.ag person/60979-ralf-rikermann/
- rezka.re xfsearch/director/ральф рикерманн/
- en.wikipedia.org Mark Ralph (record producer)