Stability of quintic and sextic functional equations in non-archimedean fuzzy normed spaces. - Tian Zhou Xu; Wan Xin Xu; John Michael Rassias; Matina John Rassias (FSKD, 2011)

On the stability of multi-Jensen mappings in β-normed spaces. - Tian Zhou Xu (Appl. Math. Lett., 2012)

On fuzzy approximately cubic type mapping in fuzzy Banach spaces. - Tian Zhou Xu (Inf. Sci., 2014)