Moscow(4), Kharkiv, Saint Petersburg(2), Tuapse, Leipzig, Dubna, Warsaw, Yekaterinburg, Budapest, Kaunas, Arkhangelsk, Falkenstein, Zaporizhzhya, Novosibirsk, Nizhny Tagil, Ljubljana, Tambov, Omsk(2), Chisinau, Vienna, Vitebsk, Tbilisi, Haarlem.