中国科学院数学与系统科学研究院期刊网
AMS
Characterization of Operators on the Dual of Hypergroups which Commute with Translations and Convolutions
Ali Ghaffari, Alireza Medghalchi
Acta Mathematica Sinica . 2004, (2): 201 -208 .  DOI: 10.1007/s10114-004-0338-y