TY - JOUR AU - A. A. Tolstonogov TI - Densities of measures as an alternative to derivatives for measurable inclusions JO - Funkcionalʹnyj analiz i ego priloženiâ PY - 2019 SP - 52 EP - 62 VL - 53 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/FAA_2019_53_4_a4/ LA - ru ID - FAA_2019_53_4_a4 ER -