@article{10_4153_CJM_1968_029_7,
     author = {Kelly, John B.},
     title = {Products of {Zero-One} {Matrices}},
     journal = {Canadian journal of mathematics},
     pages = {298--329},
     year = {1968},
     volume = {20},
     number = {1},
     doi = {10.4153/CJM-1968-029-7},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1968-029-7/}
}