1.
Questioning relationships between socioeconomic and demographic factors in the light of characteristics of rural Wallonia during the 19th century
2.
Questionner les relations entre aspects socioéconomiques et démographie à l’aune des particularités du milieu rural local wallon au 19e siècle
[A demographic implosion in Europe ?] ; [Implosion démographique en Europe ?] ; Implosione demografica in Europa ?
3.