@article{VMUMM_1998_1_a13,
     author = {V. S. Matveev and P. Topalov},
     title = {Conjugate points of hyperbolic geodesics of square integrable geodesic flows on closed surfaces},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {60--62},
     publisher = {mathdoc},
     number = {1},
     year = {1998},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_1998_1_a13/}
}