@article{Valleron2010,
author = {Valleron, A.-J. and Cori, A. and Valtat, S. and Meurisse, S. and Carrat, F. and Boëlle, P.-Y.},
title= {Transmissibility and geographic spread of the 1889 influenza pandemic},
year = {2010},
doi = {10.1073/pnas.1000886107},
volume = {107},
number = {19},
pages = {8778--8781},
}