@article{10_4007_annals_2009_170_529,
     author = {Nancy Hingston},
     title = {Subharmonic solutions of {Hamiltonian} equations on tori},
     journal = {Annals of mathematics},
     pages = {529--560},
     publisher = {mathdoc},
     volume = {170},
     number = {2},
     year = {2009},
     doi = {10.4007/annals.2009.170.529},
     mrnumber = {2552101},
     zbl = {1180.58009},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4007/annals.2009.170.529/}
}