Karashchuk A F

Publications in Math-Net.Ru

1. Asymptotics of the solution of a system of equations in partial derivatives of the first order with a small parameter at some derivatives
   
   Fundam. Prikl. Mat., 6:3 (2000),  723–738
2. One singularly perturbed system of partial differential equations of the first order
   
   Mat. Zametki, 57:3 (1995),  338–349