Harvard Theatre Collection - Saison Russe 1913, Moussorgsky, MS Thr 965 (7), Ilya Repin, 23 May 1913

Petrovitch moussorgsky. From a playbill, théâtre des champs-elysées. Saison russe. 23 mai 1913. Ballets russes programs, 1907-1929 (ms thr 965 [7). Harvard theatre collection, houghton library, harvard university. Date: 23 May 1913.