Zbigniew Lonc Mariusz Meszka Zdzislaw Skupien Edge Decompositions of Multigraphs into 3-Matchings. 507-515 2004 20 Graphs and Combinatorics 4 http://dx.doi.org/10.1007/s00373-004-0581-0 db/journals/gc/gc20.html#LoncMS04