中国科学院数学与系统科学研究院期刊网
Amalgamss of Rank 2 in Characteristic 3 Involving L2 (5)*
Huang Jianhua, Ma Jixin, Bernd Stellmacher
Acta Mathematica Sinica . 1989, (3): 263 -270 .  DOI: 10.1007/BF02107552