@article{MZM_1986_39_3_a5,
     author = {V. N. Demenko},
     title = {$p${-Helson} curves in the plane},
     journal = {Matemati\v{c}eskie zametki},
     pages = {349--359},
     publisher = {mathdoc},
     volume = {39},
     number = {3},
     year = {1986},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1986_39_3_a5/}
}