Retrieved 1 April 2016. ↑ Vitali Klitschko sworn in as mayor of Kiev, Interfax-Ukraine (5 June 2014) ↑ Klitschko officially announced as winner of Kiev mayor election, Interfax-Ukraine (4 June 2014) ↑ Poroshenko appoints Klitschko head of Kyiv city administration – decree, Interfax-Ukraine (25 June 2014) Poroshenko orders Klitschko to bring title of best European capital back to Kyiv, Interfax-Ukraine (25 June 2014) ↑ Hrushevsky, M., Bar Starostvo: Historical Notes: XV-XVIII, St. Vladimir University Publishing House, Bol'shaya-Vasil'kovskaya, Building no.