@article{SM_1991_68_2_a4,
     author = {B. S. Rubin},
     title = {Multiplier operators connected with the {Cauchy} problem for the wave equation. {Difference} regularization},
     journal = {Sbornik. Mathematics},
     pages = {391--416},
     year = {1991},
     volume = {68},
     number = {2},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1991_68_2_a4/}
}