@article{Hoem1976,
author = {Hoem, J.M. and Keiding, N. and Hannu, K. and Natvig, B. and Barndorff-Nielsen, O. and Hilden, J.},
title= {The statistical theory of demographic rates: A review of current developments},
year = {1976},
volume = {3},
number = {4},
pages = {169--185},
}