Lundberg, Mattias. “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 (December 1, 2012). Accessed January 16, 2026. https://publicera.kb.se/stm-sjm/article/view/48514.