Sivtceva–Maksimova, Praskovia, and Sakhayana Sivtseva. “TOWARD THE SCIENTIFIC RESEARCH OF A.E. KULAKOVSKY: FLORISTIC ANALYSIS OF THE NORTHERN REGION OF RUSSIA”. Amazonia Investiga 8, no. 21 (August 31, 2019): 365-371. Accessed May 10, 2024. https://amazoniainvestiga.info/index.php/amazonia/article/view/113.