1.
Nanan N. ULAM-HYERS STABILITY OF A FIXED POINT EQUATION VIA GENERALIZED PICARD OPERATORS. J. Nonlinear Anal. Optim. [Internet]. 2013Jul.28 [cited 2021Dec.6];4(2):181-7. Available from: http://www.math.sci.nu.ac.th/ojs302/index.php/jnao/article/view/267