@article{Røskraft1992,
author = {Røskraft, E. and Wara, A. and Viken, A.},
title= {Reproductive success in relation to resource-access and parental age in a small Norwegian farming parish during the period 1700-1900},
year = {1992},
doi = {10.1016/0162-3095(92)90012-S},
journal = {Ethology and Sociobiology},
volume = {13},
number = {5-6},
pages = {443--461},
}