| |
| 1998 | ||
|---|---|---|
| 2 | Olof Barr: Properly Coloured Hamiltonian Paths in Edge-Coloured Complete Graphs without Monochromatic Triangles. Ars Comb. 50: (1998) | |
| 1994 | ||
| 1 | EE | Olof Barr: On extremal graphs without compatible triangles or quadrilaterals. Discrete Mathematics 125(1-3): 31-43 (1994) |