@article{Federico2004,
author = {Federico, B. and Kunst, A.E. and Vannoni, F. and Damiani, G. and Costa, G.},
title= {Trends in educational inequalities in smoking in northern, mid and southern Italy, 1980–2000},
year = {2004},
doi = {10.1016/j.ypmed.2004.03.029},
journal = {Preventive Medicine},
volume = {39},
number = {5},
pages = {919--926},
}