TY - JOUR AU - N. K. Kossovski TI - A construction of basic operators of the combination theory of $K$-algorithms, using operators of a simple kind JO - Zapiski Nauchnykh Seminarov POMI PY - 1968 SP - 80 EP - 94 VL - 8 UR - http://geodesic.mathdoc.fr/item/ZNSL_1968_8_a8/ LA - ru ID - ZNSL_1968_8_a8 ER -