no. 2
On the existence of geodesics in static Lorentz manifolds with singular boundary
Annali della Scuola Normale Superiore di Pisa - Classe di Scienze, Serie 4, Volume 19 (1992) no. 2, pp. 255-289 
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     author = {Benci, V. and Fortunato, D. and Giannoni, F.},
     title = {On the existence of geodesics in static {Lorentz} manifolds with singular boundary},
     journal = {Annali della Scuola Normale Superiore di Pisa - Classe di Scienze},
     pages = {255--289},
     publisher = {Scuola normale superiore},
     volume = {Ser. 4, 19},
     number = {2},
     year = {1992},
     mrnumber = {1197214},
     zbl = {0776.53040},
     language = {en},
     url = {https://www.numdam.org/item/ASNSP_1992_4_19_2_255_0/}
}
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Benci, V.; Fortunato, D.; Giannoni, F. On the existence of geodesics in static Lorentz manifolds with singular boundary. Annali della Scuola Normale Superiore di Pisa - Classe di Scienze, Serie 4, Volume 19 (1992) no. 2, pp. 255-289. https://www.numdam.org/item/ASNSP_1992_4_19_2_255_0/

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