@book{WeizsaeckerKrishna, author = {Weizsaecker, Carl Friedrich von and Krishna, G.}, title = {Biologische Basis religi{\"o}ser Erfahrung, Weilheim/Obb. (Otto Wilhelm Barth Verlag) 1971.}, language = {de} } @book{Weizsaecker, author = {Weizsaecker, Carl Friedrich von}, title = {Die Einheit der Natur. Studien, Z{\"u}rich (Buchclub Ex Libris), 1971, 491 pp.}, language = {de} }