Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{PORMA_1995__52_4_47459, author = {Abdel-All, N.H.}, title = {Singular {Klein} manifolds.}, journal = {Portugaliae mathematica}, pages = {499--509}, publisher = {mathdoc}, volume = {52}, number = {4}, year = {1995}, zbl = {0842.53009}, language = {en}, url = {http://geodesic.mathdoc.fr/item/PORMA_1995__52_4_47459/} }
Abdel-All, N.H. Singular Klein manifolds.. Portugaliae mathematica, Tome 52 (1995) no. 4, pp. 499-509. http://geodesic.mathdoc.fr/item/PORMA_1995__52_4_47459/