中国科学院数学与系统科学研究院期刊网
Finite Projective Geometries and Classification of the Weight Hierarchies of Codes (Ⅰ)
Wen De CHEN, Torleiv KLΦVE
Acta Mathematica Sinica . 2004, (2): 333 -348 .  DOI: 10.1007/s10114-004-0337-z