Blog
https://www.researchgate.net/profile/Jiri_Dostal5/publication/328861268_Using_a_Mind_Map_to_Learn_English_Vocabulary/links/5be74eeda6fdcc3a8dcc2a6d/Using-a-Mind-Map-to-Learn-English-Vocabulary.pdf
Nouvelle étude de Xiaojun Wang et Jirí Dostál de l’University Olomouc en Tchequie.