@article{MAN_1972__199_162323,
     author = {Ravindra S. Kulkarni},
     title = {On the {Bianchi} {Identities.}},
     journal = {Mathematische Annalen},
     pages = {175--204},
     publisher = {mathdoc},
     volume = {199},
     year = {1972},
     zbl = {0234.53021},
     url = {http://geodesic.mathdoc.fr/item/MAN_1972__199_162323/}
}