КОЙНОВА, І. Б., and Р. І. ШТОЙКО. “GEOECOLOGICAL THE THREAT SPREADING OF HERACLEUM SOSNOWSKYI ON THE TERRITORY IN TURKIVSKYI DISTRICT OF LVIV REGION”. Man and Environment. Issues of Neoecology, no. 1-2(23), 1, pp. 115-22, https://periodicals.karazin.ua/humanenviron/article/view/3911.