Books (40) E-Books (38) Articles (Online) (2414) OpenAccess-fulltext (2008) more... Bookchapter (Print) (10) Bookchapter (Online) (98) Thesis (4) Audio (DVD/CD) (3) Articles (Print) (9) Thesis (Online) (5) Video (Online) (1) less...
english (3711) german (130) more... french (9) italian (3) latin (4) dutch (2) danish (1) swedish (83) russian (5) portuguese (25) spanish (57) norwegian (2) polish (2) less...