TY - JOUR AU - N. V. Petri TI - Two theorems on the complexity of algorithms and computations JO - Zapiski Nauchnykh Seminarov POMI PY - 1969 SP - 165 EP - 174 VL - 16 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/ZNSL_1969_16_a18/ LA - ru ID - ZNSL_1969_16_a18 ER -