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Israel Vladimirovich Nestyev, and Richard Taruskin. “Prokofiev, Sergey.” Britannica Biographies, Mar. 2012, p. 1. EBSCOhost, https://search.ebscohost.com/login.aspx?direct=true&db=b6h&AN=32421162&site=brc-live.
Rosen, Daniel. “Sergei Prokofiev.” Sergei Prokofiev, Jan. 2009, p. 1. EBSCOhost, https://search.ebscohost.com/login.aspx?direct=true&db=b6h&AN=36212968&site=brc-live.
Barone, Joshua. “The Tortured History Behind Prokofiev's 'Romeo and Juliet'.” The New York Times, The New York Times, 23 Jan. 2018, https://www.nytimes.com/2018/01/23/arts/music/prokofiev-romeo-and-juliet-new-york-philharmonic-new-york-city-ballet.html.