| |
| 2008 | ||
|---|---|---|
| 3 | EE | Haicheng Ma, Haizhen Ren: The chromatic equivalence classes of the complements of graphs with the minimum real roots of their adjoint polynomials greater than -4. Discrete Mathematics 308(10): 1830-1836 (2008) |
| 2007 | ||
| 2 | EE | Haicheng Ma, Haizhen Ren: The new methods for constructing matching-equivalence graphs. Discrete Mathematics 307(1): 125-131 (2007) |
| 2004 | ||
| 1 | EE | Haicheng Ma, Haizhen Ren: sigma-polynomials. Discrete Mathematics 285(1-3): 341-344 (2004) |
| 1 | Haizhen Ren | [1] [2] [3] |