@article{Kermack1934, author = {Kermack, W.O. and McEndrick, A.G. and McKinlay, P.L.}, title= {Death rates in Great Britain and Sweden: Expression of speciļ¬c mortality rates as product of two factors, and some consequences thereof}, year = {1934}, doi = {10.1017/S0022172400043230}, volume = {34}, number = {3}, pages = {433--457}, }