@article{DMGT_2015_35_3_a13,
     author = {Goddard, Wayne and Wash, Kirsti and Xu, Honghai},
     title = {Worm {Colorings}},
     journal = {Discussiones Mathematicae. Graph Theory},
     pages = {571--584},
     publisher = {mathdoc},
     volume = {35},
     number = {3},
     year = {2015},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/DMGT_2015_35_3_a13/}
}