@article{GDZPPN002353164, title = {Local invariants of a pseudo-Riemannian manifold.}, journal = {Mathematica Scandinavica}, volume = {36}, year = {1975}, pages = {110-131}, zbl = {0299.53040}, url = {http://dml.mathdoc.fr/item/GDZPPN002353164} }
Gilkey, Peter B. Local invariants of a pseudo-Riemannian manifold.. Mathematica Scandinavica, Tome 36 (1975) pp. 110-131. http://gdmltest.u-ga.fr/item/GDZPPN002353164/