Geodesic
On geometry of a class of equations $y'''=f(x,y,y',y'')$
Trudy Matematicheskogo Instituta imeni V.A. Steklova, Tome 21 (1966) no. 3 
N. V. Stepanov. On geometry of a class of equations $y'''=f(x,y,y',y'')$. Trudy Matematicheskogo Instituta imeni V.A. Steklova, Tome 21 (1966) no. 3. http://geodesic.mathdoc.fr/item/RM_1966_21_3_a14/
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     title = {On geometry of a class of equations $y'''=f(x,y,y',y'')$},
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Voir la notice de l'article provenant de la source Math-Net.Ru

[1] E. Cartan, “La geometria de las ecuaciones differenciales de tercer orden”, Rev. Math. Hisp.-Amer. Soc., 4:1 (1941) | Zbl

[2] G. F. Laptev, Differentsialnaya geometriya pogruzhennykh mnogoobrazii, Trudy Mosk. matem. o-va, 2, 1953 | MR | Zbl

[3] A. N. Vasilev, “Obschie invariantnye metody v differentsialnoi geometrii”, DAN, 79:1 (1951)

[4] S. P. Finikov, Metod vneshnikh form, Gostekhizdat, M.–L., 1948

[5] N. V. Stepanov, “Geometriya uravneniya $y'''=f(x,y,y',y'')$”, Tezisy dokladov Vtoroi Vsesoyuznoi geometricheskoi konferentsii, Kharkov, 1964