中国科学院数学与系统科学研究院期刊网
CONTRIBUTIONS TO THE PROJECTIVE THEORY OF CURVES IN SPACE OF N DIMENSIONS(Second Memoir)
苏步青
CONTRIBUTIONS TO THE PROJECTIVE THEORY OF CURVES IN SPACE OF N DIMENSIONS(Second Memoir)
BUCHIN SU
数学学报 . 1937, (2): 277 -289 .  DOI: 10.12386/A1937sxxb0021