@article{AIF_2019__69_1_409_0,
     author = {Frauenfelder, Urs and Lange, Christian and Suhr, Stefan},
     title = {A {Hamiltonian} version of a result of {Gromoll} and {Grove}},
     journal = {Annales de l'Institut Fourier},
     pages = {409--419},
     publisher = {Association des Annales de l{\textquoteright}institut Fourier},
     volume = {69},
     number = {1},
     year = {2019},
     doi = {10.5802/aif.3247},
     zbl = {07067408},
     language = {en},
     url = {https://aif.centre-mersenne.org/articles/10.5802/aif.3247/}
}