English Abstract 542 Journal Article 532 Historical Article 353 Population 135 Demographic Factors 132 Biography 130 Developed Countries 124 Population Dynamics 118 Europe 117 Mediterranean Countries 80 Southern Europe 67 Research Methodology 66 Italy 55 Economic Factors 49 Social Sciences 45 Demography 44 Population Characteristics 41 Mortality 38 Socioeconomic Factors 36 Fertility 35 Family And Household 34 Historical Demography 34 Western Europe 34 Developing Countries 33 Migration 33 Age Factors 25 Geographic Factors 24 Nuptiality 22 Africa 20 Fertility Measurements 20