Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DAN_1986_291_1_a15, author = {A. T. Il'ichev}, title = {The {Sturm--Liouville} problem for stationary axisymmetric gravitational fields}, journal = {Doklady Akademii Nauk}, pages = {67--71}, publisher = {mathdoc}, volume = {291}, number = {1}, year = {1986}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1986_291_1_a15/} }
A. T. Il'ichev. The Sturm--Liouville problem for stationary axisymmetric gravitational fields. Doklady Akademii Nauk, Tome 291 (1986) no. 1, pp. 67-71. http://geodesic.mathdoc.fr/item/DAN_1986_291_1_a15/