@article{10_1017_S0017089520000130,
     author = {DI\'OGENES, R. and RIBEIRO, E. and RUFINO, E.},
     title = {FOUR-MANIFOLDS {WITH} {POSITIVE} {CURVATURE}},
     journal = {Glasgow mathematical journal},
     pages = {245--257},
     year = {2021},
     volume = {63},
     number = {2},
     doi = {10.1017/S0017089520000130},
     url = {http://geodesic.mathdoc.fr/articles/10.1017/S0017089520000130/}
}