“A REGULARIZED TRACE OF A TWO-FOLD DIFFERENTIATION OPERATOR WITH NON-LOCAL MATCHING CONDITIONS ON A STAR GRAPH WITH ARCS OF THE SAME LENGTH”. ҚазҰУ Хабаршысы. Математика, механика, информатика сериясы 126, no. 2 (June 22, 2025). Accessed July 13, 2026. https://bm.kaznu.kz/index.php/kaznu/article/view/1723.