%0 Journal Article %A O. A. Ivanov %T On the set of zeros of a mapping of a cylinder %J Zapiski Nauchnykh Seminarov POMI %D 1988 %P 159-163 %V 167 %U http://geodesic.mathdoc.fr/item/ZNSL_1988_167_a11/ %G ru %F ZNSL_1988_167_a11