@article{VMUMM_1987_1_a23,
     author = {O. G. Privalova},
     title = {The problem of maximum range flight},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {78--81},
     year = {1987},
     number = {1},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_1987_1_a23/}
}