%0 Journal Article %A Suyoung Choi %A Mathieu Vallée %T Cohomological Rigidity of the Connected Sum of Three Real Projective Spaces %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 2022 %P 198-209 %V 317 %I mathdoc %U http://geodesic.mathdoc.fr/item/TM_2022_317_a9/ %G ru %F TM_2022_317_a9