Christian Laforest Arthur L. Liestman Thomas C. Shermer Dominique Sotteau Edge-disjoint spanners of complete bipartite graphs. 65-76 2001 234 Discrete Mathematics 1-3 http://dx.doi.org/10.1016/S0012-365X(00)00192-8 db/journals/dm/dm234.html#LaforestLSS01