%0 Journal Article
%A M. V. Dragnev
%T A certain class of point mappings of $P_3$ into~$P_2$
%J Itogi Nauki i Tekhniki. Seriya Problemy Geometrii. Trudy Geometricheskogo Seminara
%D 1974
%P 223-241
%V 6
%I mathdoc
%U http://geodesic.mathdoc.fr/item/INTG_1974_6_a11/
%G ru
%F INTG_1974_6_a11