Marconi, V.; Franceschelli, C.; Marabini, S.; Vai, G.; Zuffa, . G. G. Provenance of the Cotignola Quarry Sands (northern Apennines) As a Tool for Palaeogeographical Studies on the Action of Senio and Santerno Rivers in the Romagna Floodplain. AMQ 2008, 21 (1B), 139-146.