Ghini Bettiol, Renato, and Paolo Piccione. “Nonplanar Minimal Spheres in Ellipsoids of Revolution”. ANNALI SCUOLA NORMALE SUPERIORE - CLASSE DI SCIENZE 27, no. 2 (July 16, 2026): 777-816. Accessed August 20, 2026. https://journals.sns.it/index.php/annaliscienze/article/view/6408.