Giorgio Ausiello Giuseppe F. Italiano Umberto Nanni Hypergraph Traversal Revisited: Cost Measures and Dynamic Algorithms. 1-16 1998 conf/mfcs/1998 MFCS http://link.springer.de/link/service/series/0558/bibs/1450/14500001.htm db/conf/mfcs/mfcs98.html#AusielloIN98