@article{10_4153_CJM_1972_010_7,
     author = {Wright, E. M.},
     title = {Counting {Coloured} {Graphs.} {III}},
     journal = {Canadian journal of mathematics},
     pages = {82--89},
     year = {1972},
     volume = {24},
     number = {1},
     doi = {10.4153/CJM-1972-010-7},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1972-010-7/}
}