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