@Misc{130534544, title="Materialien zur Bev{\"o}lkerungswissenschaft", year="1984", publisher="Inst.", address="Wiesbaden", note="BiB, Bundesinstitut f{\"u}r Bev{\"o}lkerungsforschung", note="1.1984 -", issn="0178-918X", language="German" }