| |
| 1999 | ||
|---|---|---|
| 2 | EE | LeRoy B. Beasley, Sylvia D. Monson, Norman J. Pullman: Linear operators that strongly preserve graphical properties of matrices - II. Discrete Mathematics 195(1-3): 53-66 (1999) |
| 1992 | ||
| 1 | EE | LeRoy B. Beasley, Norman J. Pullman: Linear operators that strongly preserve graphical properties of matrices. Discrete Mathematics 104(2): 143-157 (1992) |
| 1 | Sylvia D. Monson | [2] |
| 2 | Norman J. Pullman | [1] [2] |