Dien, Nguyen, Nguyen Le Ai Vinh, Vo Hanh, & Nguyen Trung Thanh. " Species composition of heterocytous cyanobacteria in some types of cultivated soils in Nghe An province." VNU Journal of Science: Natural Sciences and Technology [Online], 34.1 (2018): n. pag. Web. 24 Nov. 2024