@article{Iwasawa2004,
author = {Iwasawa, M.},
title= {Partnership transition in contemporary Japan: Prevalence of childless non-cohabiting couples},
year = {2004},
URL = {http://www.ipss.go.jp/webj-ad/WebJournal.files/population/2004_3/iwasawa2004mar.pdf},
journal = {The Japanese Journal of Population},
volume = {2},
number = {1},
pages = {76--92},
}