Max P. Urchs. Klassische Logik - eine Einführung. Logica Nova, Akademie Verlag, 1993.
@book{0078108, title = {Klassische Logik - eine Einführung}, author = {Max P. Urchs}, year = {1993}, researchr = {https://researchr.org/publication/0078108}, cites = {0}, citedby = {0}, series = {Logica Nova}, publisher = {Akademie Verlag}, isbn = {978-3-05-002228-4}, }