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2. Bernard, J.: The Music of Edgar Varése. Yale University Press, New Haven (1987)
3. Feldman, M.: Give My Regards to Eighth Street: Collected Writings of Morton Feldman. In: Friedman, B.H. (eds.). Exact Change Press, Cambridge (2000)
4. Forte, A.: The Structure of Atonal Music. Yale University Press, New Haven (1973)
5. Gelleny, S.A.: Variation techniques and other theoretical issues in Morton Feldman’s “carpet” compositions. Ph.D. diss, SUNY Buffalo (2000)