@article{ZVMMF_1995_35_4_a12,
     author = {I. L. Kovalenko and L. Yu. Lenivtseva and A. I. Litvin and S. D. Simonzhenkov},
     title = {Application of an implicit variational-gradient method to the {Dirichlet} problem for the {Helmholtz} equation},
     journal = {\v{Z}urnal vy\v{c}islitelʹnoj matematiki i matemati\v{c}eskoj fiziki},
     pages = {611--615},
     year = {1995},
     volume = {35},
     number = {4},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZVMMF_1995_35_4_a12/}
}