db/conf/gis/SookineM98.html Alexandre Sorokine Irina Merzliakova Interactive Map Applet for Illustrative Purposes. 46-51 GIS1998/P046.pdf 1998 conf/gis/98 ACM-GIS http://doi.acm.org/10.1145/288692.288702 db/conf/gis/gis98.html#SookineM98