@book{ 0-1143040147, title = {Philosophie des zwanzigsten Jahrhunderts oder Die Wiederkehr des Menschen}, series = {Reclam-Bibliothek}, author = {Steffens, Andreas}, address = {Leipzig}, publisher = {Reclam}, year = {1999}, edition = {1. Aufl.}, isbn = {3379016632}, language = {German}, url = {https://katalog.ub.uni-leipzig.de/Record/0-1143040147} }