TY JOUR TI INTRA-POPULATION STRUCTURE OF HELICOPSIS STRIATA (GASTROPODA, PULMONATA, HYGROMIIDAE) IN THE FOREST-STEPPE LANDSCAPE CONDITIONS OF THE MID-RUSSIA UPLAND SOUTH KW specially protected kind KW terrestrial mollusk KW forest-steppe KW intra-population structure JO Bulletin of KSAU AU Sichev, A.A. AU Snegin, E.A. PY 2013 IS PB Krasnoyarsk State Agrarian University