Tyulepberdinova, G. A., S. A. Adilzhanova, and Zh. E. Temirbekova. 2015. “Approximation of a Method of Iterations of Landveber for the Net Equation”. International Journal of Mathematics and Physics 6 (2):61-63. https://ijmph.kaznu.kz/index.php/kaznu/article/view/150.