中国科学院数学与系统科学研究院期刊网
Some Genenalizations to Several Dimensions of the Pedoe Inequality with Applications
GangSong Leng,LiHua Tang
Acta Mathematica Sinica, Chinese Series . 1997, (1): 14 -21 .  DOI: 10.12386/A1997sxxb0003