Moscow(5), Kharkiv, Saint Petersburg(2), Tuapse, Leipzig, Dubna, Haarlem, Warsaw, Yekaterinburg, Frankfurt am Main(2), Budapest, Kaunas, Arkhangelsk, Falkenstein, Zaporizhzhya, Novosibirsk, Nizhny Tagil, Ljubljana, Navapolatsk, Tambov, Omsk, Chisinau.