%0 Journal Article
%A A. A. Oshemkov
%A M. A. Tuzhilin
%T Integrable perturbations of saddle singularities of rank~0 of integrable Hamiltonian systems
%J Sbornik. Mathematics
%D 2018
%P 1351-1375
%V 209
%N 9
%I mathdoc
%U http://geodesic.mathdoc.fr/item/SM_2018_209_9_a4/
%G en
%F SM_2018_209_9_a4