Letícia Garcia da SilvaEduardo Gonçalves de Azevedo NetoRosemary FranciscoJorge Luis Victória BarbosaLuis Augusto SilvaLEITHARDT, VALDERI2021-07-262021-07-262021-07-15http://hdl.handle.net/10400.26/37198engULearnEnglish: An Open Ubiquitous System for Assisting in Learning English Vocabularyjournal article2021-07-26cv-prod-256007610.3390/electronics10141692P-00V-5GN