TY - CONF T1 - Spatio-Temporal Reasoning with LDLT: First Steps Towards a Deductive System for Geographical Applications T2 - DDLP Y1 - 1996 A1 - Marilisa E. Carboni A1 - Annalisa Di Deo A1 - Fosca Giannotti A1 - Maria V Masserotti JF - DDLP ER -