@article{IVM_1990_6_a4,
     author = {A. A. Gol'dberg and I. M. Tkach},
     title = {A~remark on {P\'olya} peaks},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {25--26},
     publisher = {mathdoc},
     number = {6},
     year = {1990},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1990_6_a4/}
}