@article{FPM_2006_12_7_a5,
     author = {A. S. Ivanova and M. A. Parinov},
     title = {Some classes of electromagnetic waves that admit parabolic helices},
     journal = {Fundamentalʹna\^a i prikladna\^a matematika},
     pages = {79--92},
     publisher = {mathdoc},
     volume = {12},
     number = {7},
     year = {2006},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/FPM_2006_12_7_a5/}
}