@book{ 0-1332327931, title = {Jahresring}, address = {Stuttgart}, publisher = {Dt. Verlags-Anstalt}, year = {1987}, isbn = {3421063672}, isbn = {9783421063670}, issn = {0448-1631}, language = {German}, url = {https://katalog.gfzk.de/Record/0-1332327931} }