Howlader, Md AS, Md Ariful Islam Arif, LS Andallah, and M Osman Gani. “Existence of Periodic Traveling Waves in the Klausmeier Model of Desertification and Its Modification: A Comparative Study”. GANIT: Journal of Bangladesh Mathematical Society 38 (December 30, 2018): 27–46. Accessed September 25, 2022. https://banglajol.info/index.php/GANIT/article/view/39783.