de Olagüe-Smithson, C., González-Lázaro, M. y Valle, J.M. 2017. Mathematical tools for monitoring Erasmus+. Comparative research with vet ka102 data in France, Germany, Italy, Spain and the United Kingdom. Journal of Supranational Policies of Education. (jun. 2017). DOI:https://doi.org/10.15366/jospoe2017.m1.011.