中国科学院数学与系统科学研究院期刊网
AMS
The Threshold for the Erd?s, Jacobson and Lehel Conjecture to Be True
Jiong Sheng LI, Jian Hua YIN
Acta Mathematica Sinica . 2006, (4): 1133 -1138 .  DOI: 10.1007/s10114-005-0676-4