@article{SM_1995_81_2_a0,
     author = {I. V. Bezmenov},
     title = {Transfer of {Sommerfeld's} radiation conditions to an~artificial boundary of a~domain, based on a~variational principle},
     journal = {Sbornik. Mathematics},
     pages = {261--279},
     publisher = {mathdoc},
     volume = {81},
     number = {2},
     year = {1995},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1995_81_2_a0/}
}