HAZRA, Suprokash; SHUKLA, Satish. Some generalizations of Kannan’s theorems via σc-function and its application. Mathematical Modelling and Analysis, [S. l.], v. 24, n. 4, p. 530–549, 2019. DOI: 10.3846/mma.2019.032. Disponível em: https://journals.vilniustech.lt/index.php/MMA/article/view/4716. Acesso em: 10 may. 2025.