中国科学院数学与系统科学研究院期刊网
AMS
On the Ricci Curvature of a Randers Metric of Isotropic S-curvature
Xiao Huan MO, Chang Tao YU
Acta Mathematica Sinica . 2008, (6): 911 -916 .  DOI: 10.1007/s10114-007-6058-3