Source: https://www.researchgate.net/profile/Christian-Degache/publication/237343230_Interactions_asynchrones_et_appropriation_dans_un_environnement_d'apprentissage_collaboratif_des_langues_Galanet/links/5ea1b499458515ec3a02bbca/Interactions-asynchrones-et-appropriation-dans-un-environnement-dapprentissage-collaboratif-des-langues-Galanet.pdf