@book{Chawla2007,
author = {Chawla, M. and Betcherman, G. and Banerji, A. },
title= {From red to gray: the “third transition” of aging populations in Eastern Europe and the former Soviet Union},
year = {2007},
doi = {10.1596/978-0-8213-7129-9},
address = {Washington DC},
publisher = {The World Bank},
}