@article{GDZPPN002099527,
title = {The Birkhoff-Lewis Fixed Point Theorem and a Conjecture of V.I. Arnold.},
journal = {Inventiones mathematicae},
volume = {74},
year = {1983},
pages = {33-50},
zbl = {0516.58017},
url = {http://dml.mathdoc.fr/item/GDZPPN002099527}
}
Conley, C.C.; Zehnder, E. The Birkhoff-Lewis Fixed Point Theorem and a Conjecture of V.I. Arnold.. Inventiones mathematicae, Tome 74 (1983) pp. 33-50. http://gdmltest.u-ga.fr/item/GDZPPN002099527/