Moroianu, Andrei, and Sergiu Moroianu. “Ricci Surfaces”. ANNALI SCUOLA NORMALE SUPERIORE - CLASSE DI SCIENZE 14, no. 4 (December 17, 2015): 1093-1118. Accessed February 10, 2025. https://journals.sns.it/index.php/annaliscienze/article/view/402.