中国科学院数学与系统科学研究院期刊网
BISCALAR-TENSOR GEOMETRY AND VARIATIONAL PRINCIPLES OF SCALAR-TENSOR THEORIES OF GRAVITATION
刘书麟
Acta Mathematica Sinica, Chinese Series . 1979, (1): 100 -117 .  DOI: 10.12386/A1979sxxb0007