%0 Journal Article %A Bazajkin, Ya.V. %A Matvienko, I.V. %T On the four-dimensional -manifolds of positive Ricci curvature. %J Sibirskij Matematicheskij Zhurnal %D 2007 %P 973 %V 48 %N 5 %I mathdoc %U https://geodesic-test.mathdoc.fr/item/SMZ_2007__48_5_55708/ %G en %F SMZ_2007__48_5_55708