@misc {MATHEDUC.02408172, author = {Bellemain, F. and Gerente, M.}, title = {Geometry and computer science: on the mid-perpendicular. Test: interaction between the problem of the researcher and that of the teacher. Geometrie et informatique: vers la mediatrice. L'experimentation: lieu d'interaction entre la problematique du chercheur et celle de L'enseignant. Geometrie und Informatik: zum Mittellot. Versuch: Interaktionsort zwischen Problematik des Forschers und der des Lehrers.}, howpublished = {Petit x. (1989-1990) (no.24) p. 37-59. [ISSN 0759-9188]}, year = {1990}, msc2010 = {G43xx (U53xx R23xx D43xx)}, identifier = {1991j.01240}, }