@article{JSFU_2013_6_2_a0,
     author = {Lubov D. Afanasyeva and Alexander A. Kolokolov},
     title = {Research of production groups formation problem subject to logical restrictions},
     journal = {\v{Z}urnal Sibirskogo federalʹnogo universiteta. Matematika i fizika},
     pages = {145--149},
     publisher = {mathdoc},
     volume = {6},
     number = {2},
     year = {2013},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/JSFU_2013_6_2_a0/}
}