Arzamas, Nizhny Novgorod Oblast, Russian Federation
Grenoble, Auvergne-Rhône-Alpes, France
Korolyov, Moscow Province, Russian Federation
Salzburg, Salzburg, Austria
Moscow, Moscow, Russian Federation
Esch-sur-Alzette, Canton of Esch-sur-Alzette, Luxembourg
Iasi, Iasi, Romania
Barcelona, Catalonia, Spain
Bishkek, Kyrgyzstan
Королев, Moscow, Russian Federation
Tallinn, Harju County, Estonia
Brussels, Belgium
