@article{PMIHES_1982__56__171_0,
     author = {Karsten Grove and Stephen Halperin},
     title = {Contributions of rational homotopy theory to global problems in geometry},
     journal = {Publications Math\'ematiques de l'IH\'ES},
     pages = {171--177},
     year = {1982},
     publisher = {Institut des Hautes \'Etudes Scientifiques},
     volume = {56},
     doi = {10.1007/BF02700465},
     mrnumber = {686045},
     zbl = {0508.55013},
     language = {en},
     url = {https://pmihes.centre-mersenne.org/articles/10.1007/BF02700465/}
}