%A Li Xiuwen %A Liu Zhenhai %A MigĂłrski StanisĹaw %N 100 %P 1-16 %D 2015 %L acta35929 %O Bibliogr.: p. 14-16. %K DifferenciĂĄlegyenlet %T Approximate controllability for second order nonlinear evolution hemivariational inequalities