Averkova, O., I. Logachev, K. Logachev, and I. Khodakov. “Modeling of the Outflow of an Ideal Fluid from the Tank Bottom”. Numerical Methods and Programming (Vychislitel’nye Metody I Programmirovanie), vol. 15, no. 39, Feb. 2014, pp. 59-69, https://en.num-meth.ru/index.php/journal/article/view/749.