Object-Oriented Requirements Engineering for GIS Applications. - Georg Kösters; Bernd-Uwe Pagel; Hans-Werner Six (ACM-GIS, 1995)

Ein Vorgehensmodell zur integrierten Anforderungsanalyse von Benutzungsschnittstelle und Anwendung. - Georg Kösters; Josef Voss (Software-Ergonomie, 1995)

The GeoOOA-Tool and Its Interface to Open Software Development Environments for GIS. - Georg Kösters; Bernd-Uwe Pagel (ACM-GIS, 1996)

GeoOOA: Object-Oriented Analysis for Geographic Information Systems. - Georg Kösters; Bernd-Uwe Pagel; Hans-Werner Six (ICRE, 1996)

Combined Analysis of User Interface and Domain Requirements. - Georg Kösters; Hans-Werner Six; Josef Voss (ICRE, 1996)

GIS-Application Development with GeoOOA. - Georg Kösters; Bernd-Uwe Pagel; Hans-Werner Six (Int. J. Geogr. Inf. Sci., 1997)

Requirements engineering für GIS-Applikationen. - Georg Kösters (Shaker, 1997)

Kombinierte Validierung von Use Cases und Klassenmodellen. - Georg Kösters; Bernd-Uwe Pagel; Mario Winter (Modellierung, 1998)

Coupling Use Cases and Class Models as a Means for Validation and Verification of Requirements Specifications. - Georg Kösters; Hans-Werner Six; Mario Winter (Requir. Eng., 2001)