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@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/} }
V. N. Demenko. $p$-Helson curves in the plane. Matematičeskie zametki, Tome 39 (1986) no. 3, pp. 349-359. http://geodesic.mathdoc.fr/item/MZM_1986_39_3_a5/