中国科学院数学与系统科学研究院期刊网
Some Remarks on (F1,F2)-Scrambled Sets
Zhan Hong LI, Huo Yun WANG, Jin Cheng XIONG
Acta Mathematica Sinica, Chinese Series . 2010, (4): 727 -732 .  DOI: 10.12386/A2010sxxb0081