Kolyshkin, Andrei, and Sergejs Nazarovs. “Stability of Slowly Diverging Flows in Shallow Water”. Mathematical Modelling and Analysis 12, no. 1 (March 31, 2007): 101-106. Accessed January 6, 2025. https://mla.vgtu.lt/index.php/MMA/article/view/7098.