Tursunov Dilmurat Abdilllajanovich «Asymptotic expansion of the solution of a singularly perturbed ordinary second-order differential equation with two turning points» // 2013. №1(21) C.34-40
Tursunov Dilmurat Abdilllajanovich «Asymptotic expansion of the solution of the bisingularly perturbed elliptic equation» // Tomsk State University Journal of Mathematics and Mechanics 2013. №6(26) C.37-44
