Frederic Chopin's "24 Preludes" --A study based on the comparison of the autograph and first editions. Bulletin of Musashino Academia Musicae. 1990. 21. 47-60
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Frederic Chopin's "24 Preludes" --A Study based on the comparison of the autograph and first editions. Bulletin of Musashino Academia Musicae. 1987. 18. 127-142