Vikraman Arvind Piyush P. Kurur T. C. Vijayaraghavan Bounded Color Multiplicity Graph Isomorphism is in the #L Hierarchy. 13-27 2005 conf/coco/2005 IEEE Conference on Computational Complexity http://dx.doi.org/10.1109/CCC.2005.7 db/conf/coco/coco2005.html#ArvindKV05