From Egypt, LE1500, from outside Egypt; €500. Fees cover attending sessions, proceedings CD, lunches, and coffee breaks for the period of the conference for one of the authors. Nonrefundable fees, LE500 (from outside Egypt, €200), are paid with paper submission. The remaining registration fees are paid with the camera ready submission. Extra pages will be charged LE 200 (from outside Egypt, €60) per page with maximum of two.