Grundland, Alfred Michel, Decio Levi, and Luigi Martina. “ON IMMERSION FORMULAS FOR SOLITON SURFACES”. Acta Polytechnica 56, no. 3 (June 30, 2016): 180–192. Accessed May 4, 2024. https://ojs.cvut.cz/ojs/index.php/ap/article/view/3483.