%0 Journal Article %J Photogrammetric Engineering and Remote Sensing %D 1991 %T Improved Integration of Remote-Sensing and Geographic Information Systems - a Background to NCGIA Initiative 12 %A Star, J. L. %A Estes, J. E. %A Davis, F. %B Photogrammetric Engineering and Remote Sensing %V 57 %P 643-645 %G eng