Lundberg, M. (2012). Pehr Frigel’s Om Contrapunkten (c. 1815): The Earliest Extant Counterpoint Method in the Swedish Vernacular, Edited and Translated with Historico-Critical Commentary. Svensk Tidskrift för Musikforskning Swedish Journal of Music Research, 15. https://doi.org/10.58698/stm-sjm.v15.48514