@article{10_4153_CMB_1966_021_x,
     author = {Chartrand, Gary and Stewart, M. James},
     title = {Total {Digraphs}},
     journal = {Canadian mathematical bulletin},
     pages = {171--176},
     year = {1966},
     volume = {9},
     number = {2},
     doi = {10.4153/CMB-1966-021-x},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-1966-021-x/}
}