@article{1103841572,
author = {Bonnor, W. B.},
title = {The gravitational field of light},
journal = {Comm. Math. Phys.},
volume = {12},
number = {1},
year = {1969},
pages = { 163-174},
language = {en},
url = {http://dml.mathdoc.fr/item/1103841572}
}
Bonnor, W. B. The gravitational field of light. Comm. Math. Phys., Tome 12 (1969) no. 1, pp. 163-174. http://gdmltest.u-ga.fr/item/1103841572/