Monnier, Moana. “Difficulties in Defining Social-Emotional Intelligence, Competences and Skills - a Theoretical Analysis and Structural Suggestion”. International Journal for Research in Vocational Education and Training 2, no. 1 (April 30, 2015): 59-84. Accessed December 10, 2019. https://journals.sub.uni-hamburg.de/hup2/ijrvet/article/view/55.