@article{IM2_2019_83_2_a1,
     author = {A. V. Arutyunov},
     title = {IInvestigation of the sets of real solutions of non-linear equations},
     journal = {Izvestiya. Mathematics },
     pages = {199--213},
     publisher = {mathdoc},
     volume = {83},
     number = {2},
     year = {2019},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_2019_83_2_a1/}
}