%0 Journal Article %A Christian Carimalo %T Transmutation of central forces and Bertrand's theorem %J Theoretical and applied mechanics %D 2023 %P 1 - 11 %V 50 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/TAM_2023_50_1_a1/ %F TAM_2023_50_1_a1