%0 Journal Article
%A O. A. Ivanov
%T Homotopy classification of some four-dimensional manifolds
%J Zapiski Nauchnykh Seminarov POMI
%D 1976
%P 164-171
%V 66
%I mathdoc
%U http://geodesic.mathdoc.fr/item/ZNSL_1976_66_a5/
%G ru
%F ZNSL_1976_66_a5