@article{JMAG_1995_2_3_a7,
     author = {M. A. Ulanovskii},
     title = {Conjugate points of the geodesies},
     journal = {\v{Z}urnal matemati\v{c}eskoj fiziki, analiza, geometrii},
     pages = {338--346},
     year = {1995},
     volume = {2},
     number = {3},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/JMAG_1995_2_3_a7/}
}