Schwendimann, B. A., De Wever, B., Hämäläinen, R., & Cattaneo, A. A. P. (2018). The State-of-the-Art of Collaborative Technologies for Initial Vocational Education: A Systematic Literature Review. International Journal for Research in Vocational Education and Training, 5(1), 19-41. https://doi.org/10.13152/IJRVET.5.1.2