@article{1103899938, author = {Clarke, C. J. S.}, title = {Space-time singularities}, journal = {Comm. Math. Phys.}, volume = {46}, number = {1}, year = {1976}, pages = { 17-23}, language = {en}, url = {http://dml.mathdoc.fr/item/1103899938} }
Clarke, C. J. S. Space-time singularities. Comm. Math. Phys., Tome 46 (1976) no. 1, pp. 17-23. http://gdmltest.u-ga.fr/item/1103899938/