TY - JOUR AU - T. A. Tushkina AU - K. V. Shakhbazyan TI - Solution of some problems of parallel ordering JO - Zapiski Nauchnykh Seminarov POMI PY - 1970 SP - 16 EP - 26 VL - 18 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/ZNSL_1970_18_a2/ LA - ru ID - ZNSL_1970_18_a2 ER -