Petrot, N., and R. Wangkeeree. “A GENERAL ITERATIVE SCHEME FOR STRICT PSEUDONONSPREADING MAPPING RELATED TO OPTIMIZATION PROBLEM IN HILBERT SPACES”. Journal of Nonlinear Analysis and Optimization: Theory & Applications (JNAO), vol. 2, no. 2, Dec. 2011, pp. 329-36, https://ph03.tci-thaijo.org/index.php/jnao/article/view/2641.