TY - THES A1 - Demirel, Hande T1 - An integrated approach to the conceptual data modeling of an entire highway agency geographic information system (GIS) Y1 - 2002 DO - 10.23689/fidgeo-401 PB - Univ. Berlin UR - http://hdl.handle.net/11858/00-1735-0000-0001-3221-C ER -