Master and use copy. Digital master created according to Benchmark for Faithful Digital Reproductions of Monographs and Serials, Version 1. Digital Library Federation, December 2002. http://purl.oclc.org/DLF/benchrepro0212 MiAaHDL
digitized 2010 HathiTrust Digital Library committed to preserve pda MiAaHDL
Description based on: Band 6 (1957); title from PDF article header (SpringerLink, viewed Aug. 2, 2011)
Latest issue consulted: Band 11 (1964/1965) (SpringerLink, viewed Aug. 2, 2011)