Source: https://www.researchgate.net/profile/Gianreto-Manatschal/publication/348618054_Enseigner_les_marges_passives_un_apercu_des_innovations_scientifiques_des_deux_dernieres_decennies/links/600d2b4da6fdccdcb8774362/Enseigner-les-marges-passives-un-apercu-des-innovations-scientifiques-des-deux-dernieres-decennies.pdf