Wahl, H., Kaufmann, C., Eckkrammer, F., Mense, A., Gollner, H., Himmler, C., Rogner, W., Baierl, T. and Slobodian, R. (2012) “Soft Skills In Practice And In Education: An Evaluation”, American Journal of Business Education (AJBE), 5(2), pp. 225–232. doi: 10.19030/ajbe.v5i2.6826.