Possibility Pythagorean fuzzy soft set and its application. - Duojie Jia-hua; Haidong Zhang; Yanping He (J. Intell. Fuzzy Syst., 2019)

Multi-Attribute Group Decision-Making Methods Based on Pythagorean Fuzzy N-Soft Sets. - Haidong Zhang; Duojie Jia-hua; Chen Yan (IEEE Access, 2020)