@article{PFMT_2010_1_a0,
     author = {S. S. Girgel},
     title = {Scalar paraxial two-dimensional {Gaussian-like} light beams},
     journal = {Problemy fiziki, matematiki i tehniki},
     pages = {7--11},
     publisher = {mathdoc},
     number = {1},
     year = {2010},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/PFMT_2010_1_a0/}
}