%0 Journal Article %A Rusin, Tomáš %T A note on the cohomology ring of the oriented Grassmann manifolds $\widetilde{G}_{n,4}$ %J Archivum mathematicum %D 2019 %P 319-331 %V 55 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.5817/AM2019-5-319/ %R 10.5817/AM2019-5-319 %G en %F 10_5817_AM2019_5_319