@article{Laws1966,
author = {Laws, R.M.},
title= {Age criteria for the African elephant Loxodonta A. Africana},
year = {1966},
doi = {10.1111/j.1365-2028.1966.tb00878.x},
journal = {African Journal of Ecolgy},
volume = {4},
number = {1},
pages = {1--37},
}