@article{AIHPA_1975__23_4_349_0,
     author = {Ihrig, E. and Sen, D. K.},
     title = {Analytic singularities and geodesic completeness. {I}},
     journal = {Annales de l'I.H.P. Physique th\'eorique},
     pages = {349--356},
     publisher = {Gauthier-Villars},
     volume = {23},
     number = {4},
     year = {1975},
     mrnumber = {386596},
     zbl = {0316.53048},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/AIHPA_1975__23_4_349_0/}
}