@article{GDZPPN002268558,
title = {The solar gravitational field completely determined by its light rays},
journal = {Mathematische Annalen},
volume = {86},
year = {1922},
pages = {227-236},
zbl = {48.1039.05},
url = {http://dml.mathdoc.fr/item/GDZPPN002268558}
}
Kasner.E. The solar gravitational field completely determined by its light rays. Mathematische Annalen, Tome 86 (1922) pp. 227-236. http://gdmltest.u-ga.fr/item/GDZPPN002268558/