| 1997 |
| 3 | EE | Giannis Panagopoulou,
Spiros Sirmakessis,
Athanasios K. Tsakalidis,
Giannis Tzimas:
A Computer Based Solution for Blood Transfusion Centres: The Case Study of Greece.
CBMS 1997: 92-97 |
| 1995 |
| 2 | | C. Chrioulis,
Giannis Panagopoulou,
Spiros Sirmakessis,
Athanasios K. Tsakalidis,
J. Tzimas:
The PELICAN System.
DEXA Workshop 1995: 461-465 |
| 1 | | V. Kapelios,
Giannis Panagopoulou,
G. Papamichail,
Spiros Sirmakessis,
Athanasios K. Tsakalidis:
The 'Cross' Rectangle Intersection Problem.
Comput. J. 38(3): 227-236 (1995) |