Der kanonische Modul eines Cohen-Macaulay-Rings Lecture Notes in Mathematics, nr. 238 Editat de J. Herzog et al. 1971 Paperback Preț: 267.05 lei 6-8 săpt.
Differentialrechnung in der analytischen Geometrie Lecture Notes in Mathematics, nr. 38 Autor R. Berger et al. 1967 Paperback Preț: 126.36 lei 38-44 zile