A FictionJunction interview I found as well as a small one from Megami Magazine. Scans from the latter come from the Madoka Magica wiki. There’s a rough translation of the small Kalafina as well as ClariS questions.
Rough translation: https://wiki.puella-magi.net/Megami_Magazine_2011-02
Download: http://www.mediafire.com/file/d7126c2yvz9uuga/Interviews.zip
#fictionjunction #kalafina #megamimagazine #magokamagica #jpop