12. References

[1] Bork, Alfred; Weinstock, Harold; editors
    Designing Computer Based Learning Material.
    Springer Verlag, 1986.
[2] Ibrahim, Bertrand; Kühni, Christiane.
    Online Supervision of CBL through LANs.
    Education & Computing 1985, vol 1 No 4, pp 243-247,
    North Holland, 1986.
[3] Ibrahim Bertrand.
    Portability Aspects for Raster Graphics on Microcomputers.
    MIMI'87 proceedings, Lugano, June 29-July 1, 1987, pp 15-18.
    ACTA Press, 1987, ISBN 0-88986-124-2
[4] Scheifler, R.W.; Getty, J.
    The X Window System.
    ACM transactions on Graphics, Vol 5 No 2, April 1986,
    pp 79-109.
[5] Projet DIANE.
    DIANE creation: l'editeur fonctionnel.
    ADI, Paris, April 1984.