@article{PFMT_2011_4_a3,
     author = {S. S. Girgel},
     title = {Physical properties of scalar {2D} beams of {Kummer} {\textendash} {Gauss}},
     journal = {Problemy fiziki, matematiki i tehniki},
     pages = {19--23},
     year = {2011},
     number = {4},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/PFMT_2011_4_a3/}
}