@article{RM_2011_66_6_a3,
     author = {N. G. Pavlova and A. O. Remizov},
     title = {Geodesics on hypersurfaces {in~Minkowski~space:} singularities of signature change},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {1201--1203},
     publisher = {mathdoc},
     volume = {66},
     number = {6},
     year = {2011},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RM_2011_66_6_a3/}
}