中国科学院数学与系统科学研究院期刊网
AMS
Classification of Krasner Hyperfields of Order 4
Mahdeyeh IRANMANESH, Morteza JAFARPOUR, Hossien AGHABOZORGI, Jian Ming ZHAN
Acta Mathematica Sinica . 2020, (8): 889 -902 .  DOI: 10.1007/s10114-020-8282-z