Preface to edition of Otto Olsson's organ work "Six Pieces on Old Church Songs", Opus 47, with subheadings "Background and publishing history", "Registration indications", and "Notes on the individual pieces".
Godkänd; 2010; Bibliografisk uppgift: Jullander, Sverker: "Förord". I Otto Olsson, Gregorianska melodier i form af orgelstycken (Six Pieces on Old Church Songs), opus 47, red. Jan H. Börjesson och Johan Hammarström. 2010.; 20120404 (svejul); 2017-07-04 ISMN 979-0-706879-10-9 (marisr)