@article{Euler1970,
author = {Euler, L.},
title= {A general investigation into the mortality and multiplication of the human species [translated by N. Keyfitz and B. Keyfitz]},
year = {1970},
doi = {10.1016/0040-5809(70)90048-1},
volume = {1},
number = {3},
pages = {307--314},
}