@article{TMF_1975_24_1_a10,
     author = {L. D. Blokhintsev and A. N. Safronov and I. A. Shvarts},
     title = {Investigation of the nonrelativistic singularities of a ``square with diagonal'' graph},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {90--99},
     publisher = {mathdoc},
     volume = {24},
     number = {1},
     year = {1975},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1975_24_1_a10/}
}