@article{1103840122, author = {Stephani, H.}, title = {Konform flache Gravitationsfelder}, journal = {Comm. Math. Phys.}, volume = {4}, number = {1}, year = {1967}, pages = { 337-342}, language = {de}, url = {http://dml.mathdoc.fr/item/1103840122} }
Stephani, H. Konform flache Gravitationsfelder. Comm. Math. Phys., Tome 4 (1967) no. 1, pp. 337-342. http://gdmltest.u-ga.fr/item/1103840122/