@article{10_4153_CMB_1967_047_1,
     author = {Heap, B. R. and Lynn, M. S},
     title = {A {Note} on {p-Cyclic} {Matrices} and {Digraphs}},
     journal = {Canadian mathematical bulletin},
     pages = {497--501},
     year = {1967},
     volume = {10},
     number = {4},
     doi = {10.4153/CMB-1967-047-1},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-1967-047-1/}
}