@article{VMP_2005_6_1_a28,
     author = {A. R. Maikov},
     title = {On approximate open boundary conditions for the wave equation and the {Klein-Gordon} equation},
     journal = {Numerical methods and programming},
     pages = {290--303},
     publisher = {mathdoc},
     volume = {6},
     number = {1},
     year = {2005},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMP_2005_6_1_a28/}
}