Gunilla Björkvall, Liturgical Sequences in Medieval Manuscript Fragments in the Swedish National Archives.
Repertorial Investigation, Inventory, and Reconstruction of the Sources. (Kungl. Vitterhets Historie och Antikvitets Akademien, Handlingar, Historiska Serien 31),
Stockholm 2015, 459 Pp. ISBN 978-91-7402-433-3, ISSN 0083-6788. Book order: http://vitterhetsakad.bokorder.se
