1. |
P. N. Petrov, S. Yu. Dobrokhotov, “Asymptotic solution of the Helmholtz equation in a three-dimensional layer of variable thickness with a localized right-hand side”, Zh. Vychisl. Mat. Mat. Fiz., 59:4 (2019), 566–578 ; Comput. Math. Math. Phys., 59:4 (2019), 529–541 |
4
|