@article{Nath2009, author = {Nath, D. and Islam, M.}, title= {New indices: An application of measuring the aging process of some Asian countries with special reference to Bangladesh}, year = {2009}, doi = {10.1007/s12062-009-9016-2}, journal = {Journal of Population Ageing}, volume = {2}, number = {1-2}, pages = {23--39}, }