Wolfgang SteitzFranz RothlaufNew insights into the OCST problem: integrating node degrees and their location in the graph.357-3642009GECCOhttps://doi.org/10.1145/1569901.1569951https://www.wikidata.org/entity/Q58205462conf/gecco/2009gdb/conf/gecco/gecco2009.html#SteitzR09