@book{Spinoza, author = {Spinoza, Baruch de}, title = {Die Ethik, Stuttgart (Alfred Kr{\"o}ner Verlag) 1966.}, language = {de} } @book{Spinoza, author = {Spinoza, Baruch de}, title = {Opera quae supersunt omnia, Lipsiae (Bernhard Tauchnitz) 1843.}, language = {mul} } @book{Spinoza, author = {Spinoza, Baruch de}, title = {Ethics, New York (Hafner) 1949.}, language = {en} } @book{Spinoza, author = {Spinoza, Baruch de}, title = {Abhandlung {\"u}ber die Vervollkommnung des Verstandes, Leipzig (Reclam).}, language = {de} }