@inbook{Keyfitz1984,
author = {Keyfitz, Nathan},
title= {Choice of function for mortality analysis: Effective forecasting depends on a minimum parameter representation},
year = {1984},
editor = {Vallin, J. },
editor = {Pollard, J.H. },
editor = {Heligman, L.},
booktitle = {Methodologies for the collection and analysis of mortality data: proceedings of a seminar at Dakar, Senegal, July 7-10, 1981},
address = {Liege, Belgium},
publisher = {Ordina Editions},
pages = {225--243},
}