@article{IVM_1984_3_a15,
     author = {A. M. Trepalin},
     title = {Dual-recurrent and almost dual-recurrent electromagnetic waves in the {Lobachevskii--Friedmann} space},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {77--79},
     publisher = {mathdoc},
     number = {3},
     year = {1984},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1984_3_a15/}
}