@article{ZNSL_1970_18_a3,
     author = {K. V. Shakhbazyan},
     title = {Achoice of numeration in parallel ordering problems},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {27--30},
     publisher = {mathdoc},
     volume = {18},
     year = {1970},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1970_18_a3/}
}