P-BRad (Braga) Arquivo Distrital Pastas de fragmentos, 013 (olim Caixa 250, nº 24)
Later hand inscriptions are found on fol. Br. "13" was written by a modern hand in red ink. Another modern hand wrote "Caixa 250 n. 24". At the top of the folio another - much older - hand wrote "A Comenda do Salvador de Vila Pouca de Aguiar". The same inscription can be found written by another hand along the left edge of the same page.
Manuel Pedro FERREIRA, Cluny no cabo do mundo: um costume, três fragmentos, in "Aspectos da Música Medieval no Ocidente Peninsular", Volume II - Música Eclesiástica, Estudos Musicológicos 34, pp. 83-118, some antiphons are listed in a table and the most significant textual variants are described. Avelino Jesus da COSTA, Pergaminhos Medievais: Inventário Ideográfico e Bibliográfico (9.vols), Braga, Seminário de Nossa Senhora da Conceição, 1944-1952