Yessenbayeva, G. and Smailova, A. (2016) “On the calculation of rectangular plates by the variation method”, Bulletin of the Karaganda University. Mathematics Series, 82(2), pp. 56–62. Available at: http://mts.buketov.edu.kz/index.php/mathematics-vestnik/article/view/100 (Accessed: 24 August 2025).