1. O. Farhi, V. Valchev, T. Ganchev, V. Vanhecke, I.A. Gorriz, D. Bischof, H. Nikolov, V. Kiriakov (2013). “The TrainWind Project: an E-Learning Platform for Vocational Training in Wind Energy Technologies”, International Jubilee Conference: 50-th Anniversary Department ETET, 2013, Varna, Bulgaria. Presentation about the E-Learning platform