@article{Horkheimer1933, author = {Max Horkheimer}, title = {Materialismus und Metaphysik}, journal = {Zeitschrift f{\"u}r Sozialforschung, ed. by M. Horkheimer, Reprint M{\"u}nchen (Deutscher Taschenbuch Verlag) 1980, Vol. II, pp. 1ff.}, year = {1933}, }