Ж.Ж. Ермекбаева, Р.Е.Шакирова, & Ж.М.Малекова. (2019). The effect of collective protection in the predator-prey system. Bulletin of L.N. Gumilyov Eurasian National University. Mathematics, Computer Science, Mechanics Series, 126(1), 72–76. Retrieved from https://bulmathmc.enu.kz/index.php/main/article/view/42