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Procedentem sponsumanonymous liturgical work SourcesMunich: Bayerische Staatsbibliothek, Handschriften-Inkunabelabteilung, Latinus monacensis 5511, fol. 60 (2/2);Prague: Státní knihovna CSSR-Universitní knihovna VI G 10a, number 1 (variant). RecordingsCodex Engelberg 314, Schola Cantorum Basiliensis, directed by Dominique Veillard and Wulf Arlt (1991): Deutsche Harmonia M RD77185.   | 
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