Liebling, Thomas M.Durán, GuillermoMatamala, Martin2007-01-222007-01-222007-01-22200410.1016/j.endm.2004.10.001https://infoscience.epfl.ch/handle/20.500.14299/239849Latin-American Conference on Combinatorics, Graphs and Applicationstext::journal::journal article::research article