TY - JOUR A1 - Danubio, M.E. A1 - Amicone, E. T1 - Biodemographic study of a central appenine area (Italy) in the 19th and 20th centuries: marriage seasonality and reproductive isolation Y1 - 2001 DO - 10.1017/S0021932001004278 JF - Journal of Biosocial Science VL - 33 IS - 3 SP - 427 EP - -449 ER -