Source: https://www.researchgate.net/profile/Guilhem-Mousselin/publication/267208738_Aller_au_hasard_Idee_saugrenue_ou_reel_potentiel_pour_la_recherche_en_these_de_geographie/links/54478d090cf2d62c3050831f/Aller-au-hasard-Idee-saugrenue-ou-reel-potentiel-pour-la-recherche-en-these-de-geographie.pdf