@article{CMUC_1988__29_1_a17,
     author = {Poljak, Svatopluk},
     title = {Maximum rank of a power of a matrix of a given pattern},
     journal = {Commentationes Mathematicae Universitatis Carolinae},
     publisher = {mathdoc},
     volume = {29},
     number = {1},
     year = {1988},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CMUC_1988__29_1_a17/}
}