Nisoli, G. , Brüngger, J. , Hostettler, K. , Stoller, N. , Fischer, K.. "Identification of Training Topics for the Improvement of the Relevant Cognitive Skills of Technical Operators in the Railway Domain". World Academy of Science, Engineering and Technology, Open Science Index 156, International Journal of Psychological and Behavioral Sciences, (2019), 13(12), 1475 - 1479.