A multi-view VR interface for 3D GIS. - Rick Germs; Gert van Maren; Edward Verbree; Frederik W. Jansen (Comput. Graph., 1999)

Interaction in virtual world views-linking 3D GIS with VR. - Edward Verbree; Gert van Maren; Rick Germs; Frederik W. Jansen; Menno-Jan Kraak (Int. J. Geogr. Inf. Sci., 1999)