Vasily Khramushin, and Alexander V. Bogdanov. “Coordinate Systems, Numerical Objects and Algorithmic Operations of Computational Experiment in Fluid Mechanics”. Global Journal of Science Frontier Research, vol. 16, no. F4, Mar. 2016, pp. 81-86, https://journalofscience.org/index.php/GJSFR/article/view/1793.