中国科学院数学与系统科学研究院期刊网
ON THE GEOMETRY OF SYMPLECTIC TRANSFORMATIONS I SYMMETRIC RIEMANNIAN SPACES OF SYMPLECTIC ANTI-INVOLUTIONS
PENG-WANG SUN
Acta Mathematica Sinica, Chinese Series . 1951, (3): 296 -331 .  DOI: 10.12386/A1951sxxb0015