Institution: | 1. College of Computer Science and Technology,
2. Symbol Computation and Knowledge Engineering of Ministry of Education, Jilin University, Changchun 130012, P. R. China;
3. Institute of Military Veterinary, Academy of Military Medical Sciences, Changchun 130012, P. R. China;
4. Changchun University of Science & Technology, Changchun 130022, P. R. China; |