|  |  | 
| 2006 | ||
|---|---|---|
| 3 | EE | Takashi Doi, Toshihiro Fujito: A primal-dual method for approximating tree cover with two weights. Discrete Optimization 3(3): 230-237 (2006) | 
| 2004 | ||
| 2 | EE | Takashi Doi, Toshihiro Fujito: A Primal-Dual Method for Approximating Tree Cover with Two Weights. Electronic Notes in Discrete Mathematics 17: 135-140 (2004) | 
| 1 | EE | Toshihiro Fujito, Takashi Doi: A 2-approximation NC algorithm for connected vertex cover and tree cover. Inf. Process. Lett. 90(2): 59-63 (2004) | 
| 1 | Toshihiro Fujito | [1] [2] [3] |