@article{ZNSL_1996_225_a2,
     author = {G. I. Petrashen and B. M. Kashtan},
     title = {On applied aspects of studing roots of dispersions equations on the other sheets of the complex plane},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {62--90},
     publisher = {mathdoc},
     volume = {225},
     year = {1996},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1996_225_a2/}
}