%0 Journal Article
%A N. B. Medvedeva
%T The problem of distinguishing between a~centre and a~focus in the space of vector fields with given Newton diagram
%J Sbornik. Mathematics
%D 2020
%P 1399-1446
%V 211
%N 10
%I mathdoc
%U http://geodesic.mathdoc.fr/item/SM_2020_211_10_a2/
%G en
%F SM_2020_211_10_a2