B. STEPHEN JOHN; S. N. LEENA NELSON. Fixed Point Theorems in Quasi Semi linear 2-Normed Space. International Journal of Mathematics And its Applications, [S. l.], v. 6, n. 1 - E, p. 1057–1061, 2018. Disponível em: https://ijmaa.in/index.php/ijmaa/article/view/1182. Acesso em: 22 jul. 2024.