中国科学院数学与系统科学研究院期刊网
A Note on the Diophantine System a~2+b~2=c~r and a~x+b~y=c~2
Mao Hua LE
Acta Mathematica Sinica, Chinese Series . 2008, (4): 677 -684 .  DOI: 10.12386/A2008sxxb0080