@article{Stene1977,
author = {Stene, J. and Fisher, G. and Stene, E. and Mikkelsen, M. and Petersen, E.},
title= {Paternal age effect in Down’s syndrome},
year = {1977},
doi = {10.1111/j.1469-1809.1977.tb00194.x},
journal = {Annals of Human Genetics},
volume = {40},
number = {3},
}