@book { DasMenschenbildbeiMarx, title = "Das Menschenbild bei Marx", subtitle = "Marx’s Concept of Man. With a Translation of Marx’s Economic and Philosophical manuscripts by T.B. Bottomore", author = "Erich {Fromm} and Rainer {Funk}", year = "2015", publisher = "Edition Erich Fromm", address = "München, Deutschland", url = "https://books.openpublishing.com/document/301555" }