%0 Journal Article %A A. V. Arutyunov %T IInvestigation of the sets of real solutions of non-linear equations %J Izvestiya. Mathematics %D 2019 %P 199-213 %V 83 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/IM2_2019_83_2_a1/ %G en %F IM2_2019_83_2_a1