@article{Simó-Noguera2020,
author = {Simó-Noguera, C.X. and Lledó, J. and Pavía, J.M.},
title= {Lent impact on the seasonality of conceptions during the twentieth century in Spain},
year = {2020},
doi = {10.1007/s10680-020-09555-z},
volume = {36},
number = {5},
pages = {875--893},
}