GESSLER, M.; SIEMER, C. . Umbrella review: Methodological review of reviews published in peer-reviewed journals with a substantial focus on vocational education and training research. International Journal for Research in Vocational Education and Training, [S. l.], v. 7, n. 1, p. 91-125, 2020. DOI: 10.13152/IJRVET.7.1.5. Disponível em: https://journals.sub.uni-hamburg.de/hup2/ijrvet/article/view/515. Acesso em: 28 oct. 2020.