%0 Journal Article %A G. M. Polotovskiy %T V. A. Rokhlin and D. A. Gudkov against the background of Hilbert's 16th problem (according to their correspondence in 1971–1982) %J Zapiski Nauchnykh Seminarov POMI %D 2020 %P 157-167 %V 498 %U http://geodesic.mathdoc.fr/item/ZNSL_2020_498_a10/ %G ru %F ZNSL_2020_498_a10