@article{Nunes2011,
author = {Nunes, B. and Natário, I. and Carvalho, M.L.},
title= {Time series methods for obtaining excess mortality attributable to influenza epidemics},
year = {2011},
doi = {10.1177/0962280209340201},
journal = {Statistical Methods in Medical Research },
volume = {20},
number = {4},
pages = {331--345},
}