| Article ID: | iaor1996576 |
| Country: | United States |
| Volume: | 29 |
| Issue: | 12 |
| Start Page Number: | 75 |
| End Page Number: | 80 |
| Publication Date: | Jun 1995 |
| Journal: | Computers & Mathematics with Applications |
| Authors: | Deng Young-Ching, Wang Yue-Li, Chang Jou-Ming |
| Keywords: | graphs |
In this paper, the authors shall give a combinatorial proof of the following equation: 
