Dimitris J. Kavvadias Elias C. Stavropoulos Evaluation of an Algorithm for the Transversal Hypergraph Problem. 72-84 http://dx.doi.org/10.1007/3-540-48318-7_8 1999 conf/wae/1999 Algorithm Engineering db/conf/wae/wae1999.html#KavvadiasS99