Functional and spatial interpretation of the sanctuary and enclosures of Ribemont-sur-Ancre (Somme): the role of paleoenviromental studies - Fercoq du Leslay, Gérard (Archaeology, soil- and life-sciences applied to enclosures and fields. Proceedings of the Session "From microprobe to spatial analysis - Enclosed and buried surfaces as key sources in Archaeology and Pedology". European Association of Archaeologists 12th Annual Meeting, Krakow, Poland, 19th to 24th September 2006., 2011)