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With introduction, critical notes, facsimiles. For more information, see http://www.corpusmusicae.com/cmm/cmm_cc001.htmYou may also like Corpus Mensurabilis Musicae: CMM 1 GUILLAUME DUFAY (ca. 1400-1474), Opera Omnia, edited by Heinrich Besseler. Vol. V Compositiones Liturgicae Minores (Series #1) (Paperback).