Artaud, M. 2019. Praxéologies de formation, praxéologies pour la formation et leur écologie. La justification des pratiques comme condition et comme contrainte.<br>Training praxeology, praxeology’s for training and their ecology -The justification of practices as a condition and as a constraint. Educação Matemática Pesquisa. 21, 5 (nov. 2019). DOI:https://doi.org/10.23925/1983-3156.2019v21i5p80-98.