TY - JOUR AU - L. V. Keldysh TI - The ideas of N.\,N.~Luzin in descriptive set theory JO - Trudy Matematicheskogo Instituta imeni V.A. Steklova PY - 1974 SP - 179 EP - 193 VL - 29 IS - 5 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/RM_1974_29_5_a3/ LA - en ID - RM_1974_29_5_a3 ER -