Source: https://www.researchgate.net/profile/Yann-Vuillet/publication/346019258_Vuillet_2020_Ce_qui_reste_et_ce_qui_change_L'Educateur_Numero_special_Mission_transmission_juin_2020/links/5fb646b5a6fdcc6cc64a14a5/Vuillet-2020-Ce-qui-reste-et-ce-qui-change-LEducateur-Numero-special-Mission-transmission-juin-2020.pdf