@techreport{Andersson1998,
author = {Andersson, G.},
title= {Säsongvariationer i barnafödande, giftermal och skilsmässor i Sverige 1971-1996. [Seasonal variation in fertility, marriage and divorce in Sweden 1971-1996]},
year = {1998},
publisher = {Stockholm University Demography Department (internal memorandum)},
address = {Stockholm},
}