@article{ZNSL_1997_236_a5,
     author = {A. I. Vinogradov},
     title = {Comparison of the {specrta.~II}},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {50--67},
     year = {1997},
     volume = {236},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1997_236_a5/}
}