%0 Journal Article %A S. A. Budochkina %A T. H. Luu %A V. A. Shokarev %T On indirect representability of fourth order ordinary differential equation in form of Hamilton--Ostrogradsky equations %J Ufa mathematical journal %D 2023 %P 118-128 %V 15 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/UFA_2023_15_3_a9/ %G en %F UFA_2023_15_3_a9