@article{AIHPC_2010__27_3_857_0,
     author = {Caponio, Erasmo and Javaloyes, Miguel \'Angel and Masiello, Antonio},
     title = {Morse theory of causal geodesics in a stationary spacetime via {Morse} theory of geodesics of a {Finsler} metric},
     journal = {Annales de l'I.H.P. Analyse non lin\'eaire},
     pages = {857--876},
     publisher = {Elsevier},
     volume = {27},
     number = {3},
     year = {2010},
     doi = {10.1016/j.anihpc.2010.01.001},
     mrnumber = {2629883},
     zbl = {1196.58005},
     language = {en},
     url = {http://www.numdam.org/articles/10.1016/j.anihpc.2010.01.001/}
}