TY - JOUR AU - A. Yu. Volovikov TI - Two theorems from the theory of periodic transformations JO - Sbornik. Mathematics PY - 1981 SP - 119 EP - 125 VL - 38 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/SM_1981_38_1_a8/ LA - en ID - SM_1981_38_1_a8 ER -