TY  - JOUR
AU  - K. G. Gadylshin
AU  - M. I. Protasov
TI  - Calculation of exact frequency-dependent rays when the solution of the Helmholtz equation is known
JO  - Numerical methods and programming
PY  - 2015
SP  - 586
EP  - 594
VL  - 16
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/VMP_2015_16_4_a12/
LA  - ru
ID  - VMP_2015_16_4_a12
ER  -