%0 Journal Article %A Kamachkin, Alexander M. %A Potapov, Dmitriy K. %A Yevstafyeva, Victoria V. %T Non-existence of periodic solutions to non-autonomous second-order differential equation with discontinuous nonlinearity %J Electronic Journal of Differential Equations %D 2016 %V 2016 %I mathdoc %U http://geodesic.mathdoc.fr/item/EJDE_2016__2016__a62/ %G en %F EJDE_2016__2016__a62