Published In:
Nova Acta Physico-medica Academiae Caesareae Leopoldino-Carolinae Naturae Curiosorum Exhibentia Ephemerides sive Observationes Historias et Experimenta 10: 231, t. 17, f. 5–6. 1821. (
Nova Acta Phys.-Med. Acad. Caes. Leop.-Carol. Nat. Cur.)