Search results for: Ping Zhao
Semigroup Forum > 2019 > 98 > 1 > 172-183
Bulletin of the Malaysian Mathematical Sciences Society > 2018 > 41 > 3 > 1467-1475
Bulletin of the Malaysian Mathematical Sciences Society > 2017 > 40 > 3 > 1175-1186
Semigroup Forum > 2012 > 84 > 1 > 97-115
Semigroup Forum > 2010 > 80 > 3 > 477-483