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Delta - Intercontact (Twer / Central Federal District / Russland)
Deutsche Zentrale für Tourismus (Moskau / Central Federal District / Russland)
ILDI Voyages (Sankt Petersburg / Northwestern Federal District / Russland)
Zlatoust (Sankt Petersburg / Northwestern Federal District / Russland)
St. Petersburg Centre of Language and Culture (Sankt Petersburg / Northwestern Federal District / Russland)
GRINT Center for Education and Culture (Moskau / Central Federal District / Russland)
Center for Russian Language and Culture (Moskau / Central Federal District / Russland)
Extra Class Language Center (Sankt Petersburg / Northwestern Federal District / Russland)
Lingua-Seasons (Moskau / Central Federal District / Russland)