Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DAN_1986_289_5_a12, author = {R. Martinez Brunet and A. V. Popov}, title = {Focal spot structure on an inhomogeneous sphere}, journal = {Doklady Akademii Nauk}, pages = {1079--1083}, publisher = {mathdoc}, volume = {289}, number = {5}, year = {1986}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1986_289_5_a12/} }
R. Martinez Brunet; A. V. Popov. Focal spot structure on an inhomogeneous sphere. Doklady Akademii Nauk, Tome 289 (1986) no. 5, pp. 1079-1083. http://geodesic.mathdoc.fr/item/DAN_1986_289_5_a12/