@article{Retherford2001,
author = {Retherford, R.D. and Ogawa, N. and Matsukura, R. },
title= {Late marriage and less marriage in Japan},
year = {2001},
doi = {10.1111/j.1728-4457.2001.00065.x},
journal = {Population and Development Review },
volume = {27},
number = {1},
pages = {65--102},
}