ROSENFELD, Eike, and Peter SCHMIDT. “The Influence of Ultrasound on the Reaction of Immobilized Enzymes”. Archives of Acoustics 9, no. 1-2 (June 30, 1984): 105–112. Accessed March 4, 2026. https://acoustics.ippt.gov.pl/index.php/aa/article/view/3201.