TY - JOUR AU - A. K. Mookhopadhyaya TI - On sets of positive measure under certain transformations JO - Matematic̀Œki vesnik PY - 1964 SP - 303 VL - 16 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MV_1964_16_4_a4/ ID - MV_1964_16_4_a4 ER -