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References
^Forschungen, Institut für kunst-und musikhistorische (2002). "Malzat (Malzard), Familie Josef". ISBN 978-3-7001-3043-7 (in German). Retrieved 2024-02-14.
^Breazeale, Dan; Walsh, John (2022), "Karl Leonhard Reinhold", in Zalta, Edward N.; Nodelman, Uri (eds.), The Stanford Encyclopedia of Philosophy (Winter 2022 ed.), Metaphysics Research Lab, Stanford University, retrieved 2024-02-14
^Giraudet, Jean-Paul (2013-03-25). "Ignaz Spangler". musicalics.com (in French). Retrieved 2024-02-14.