@article{Barbiera2009,
author = {Barbiera, I.  and Dalla-Zuanna, G. },
title= {Population dynamics in Middle Ages Italy before the Black Death of 1348: New discoveries from archaeological findings},
year = {2009},
doi = {10.1111/j.1728-4457.2009.00283.x},
journal = {Population and Development Review },
volume = {35},
number = {2},
pages = {367--389},
}