@article{Doblhammer2001,
author = {Doblhammer, G. and Vaupel, J.W.},
title= {Lifespan depends on month of birth},
year = {2001},
doi = {10.1073/pnas.041431898},
journal = {Proceedings of the National Academy of Sciences of the United States},
volume = {98},
number = {5},
pages = {2934--2939},
}