TY  - SER
AU  - Yang, Jie
AU  - Zhang, liangjun
AU  - Sun, Yadong
AU  - Zhang, Qingnian
TI  - Robust Multi- Layer Hierarchical Model  for  Digit Character Recognition
KW  - Digit Character Recognition
KW  - Multi- Layer Hierarchical
KW  - Neutral Networks
ER  -