* {{cite book | title=Orphei organi antiqui: essays in honor of Harald Vogel | publisher=Westfield Center | publication-place=Orcas, WA | date=2006 | isbn=0-9778400-0-X | ref={{sfnref | Westfield Center | 2006}}}}
<ref name="n026">{{cite book | title=Orphei organi antiqui: essays in honor of Harald Vogel | publisher=Westfield Center | publication-place=Orcas, WA | date=2006 | isbn=0-9778400-0-X | page=}}</ref>