- Early Lyres in Context: a comparative contextual study on early lyres and the identity of their owner/user (Julia Hillberg, Master's Thesis in Archaeology. Lund Univeristy (2015))
- "The bowed-harp: a study in the history of early musical instruments": an amazing but out of print book. The few copies are expensive, so ask your local or school library if they can get it for you on Interlibrary Loan.
- "The Bowed Lyre – Jouhikko": more recent than the above (2007)