@book{gledocs_11858_00-1735-0000-0001-3221-C, author = {Demirel, Hande}, title = {An integrated approach to the conceptual data modeling of an entire highway agency geographic information system (GIS)}, year = {2002}, publisher = {Univ. Berlin}, note = { \url {http://hdl.handle.net/11858/00-1735-0000-0001-3221-C}}, }