@article{1183539848,
author = {Sachs, R. K. and Wu, H.},
title = {General relativity and cosmology},
journal = {Bull. Amer. Math. Soc.},
volume = {83},
number = {6},
year = {1977},
pages = { 1101-1164},
language = {en},
url = {http://dml.mathdoc.fr/item/1183539848}
}
Sachs, R. K.; Wu, H. General relativity and cosmology. Bull. Amer. Math. Soc., Tome 83 (1977) no. 6, pp. 1101-1164. http://gdmltest.u-ga.fr/item/1183539848/