@article{UZKU_2006_148_1_a20,
     author = {V. E. Lobanov and A. P. Sukhorukov},
     title = {Parametric refraction and reflection of optical beams},
     journal = {U\v{c}\"enye zapiski Kazanskogo universiteta. Seri\^a Fiziko-matemati\v{c}eskie nauki},
     pages = {163--169},
     publisher = {mathdoc},
     volume = {148},
     number = {1},
     year = {2006},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/UZKU_2006_148_1_a20/}
}