Volkov, K., V. Emelyanov, I. Teterina, and M. Yakovchuk. “Methods and Concepts of Vortex Flow Visualization in the Problems of Computational Fluid Dynamics”. Numerical Methods and Programming (Vychislitel’nye Metody I Programmirovanie), vol. 17, no. 47, Mar. 2016, pp. 81-100, doi:10.26089/NumMet.v17r109.