Yll Haxhimusa Roland Glantz Maamar Saib Georg Langs Walter G. Kropatsch Logarithmic Tapering Graph Pyramid. 117-124 2002 conf/dagm/2002 DAGM-Symposium http://dx.doi.org/10.1007/3-540-45783-6_15 db/conf/dagm/dagm2002.html#HaxhimusaGMLK02