@article{INTG_1974_6_a12,
     author = {L. E. Evtushik and V. B. Tret'yakov},
     title = {Structures that can be defined by a~system of higher order ordinary differential equations},
     journal = {Itogi Nauki i Tekhniki. Seriya Problemy Geometrii. Trudy Geometricheskogo Seminara},
     pages = {243--255},
     publisher = {mathdoc},
     volume = {6},
     year = {1974},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/INTG_1974_6_a12/}
}