Mann, Giora; Dana-Picard, Thierry; Zehavi, Nurit (2006-11-30). "Technological Discourse on CAS-Based Operative Knowledge". International Journal for Technology in Mathematics Education. 14 (3): 113–120. Archived from the original on 2022-08-26. Retrieved 2012-11-11.
Mann, Giora; Dana-Picard, Thierry; Zehavi, Nurit (2006-11-30). "Technological Discourse on CAS-Based Operative Knowledge". International Journal for Technology in Mathematics Education. 14 (3): 113–120. Archived from the original on 2022-08-26. Retrieved 2012-11-11.