Bharali, Gautam, and Anwoy Maitra. “A Weak Notion of Visibility, a Family of Examples, and Wolff-Denjoy Theorems”. ANNALI SCUOLA NORMALE SUPERIORE - CLASSE DI SCIENZE 22, no. 1 (March 30, 2021): 195-240. Accessed May 27, 2025. http://20.103.181.36/index.php/annaliscienze/article/view/779.