Skill-based Engineering and Control on Field-Device-Level with OPC UA
P. Zimmermann, E. Axmann, B. Brandenbourger, K. Dorofeev, A. Mankowski, P. Zanini, Skill-Based Engineering and Control on Field-Device-Level with OPC UA, IEEE, [Piscataway, NJ], 2019.

Some aspects of the environmental labour market in five European countries and conclusions with respect to environmental curricula
J. Fettig, Water Science and Technology 49 (2004) 109–116.