@article{FPM_2007_13_1_a1,
     author = {L. B. Beasley and A. \`E. Guterman and K. Kang and S. Song},
     title = {Idempotent {Boolean} matrices and majorization},
     journal = {Fundamentalʹna\^a i prikladna\^a matematika},
     pages = {11--29},
     publisher = {mathdoc},
     volume = {13},
     number = {1},
     year = {2007},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/FPM_2007_13_1_a1/}
}