1. Frank A.U., Mark D.M.: Language Issues for Geographical Information Systems, In: Maguire, D. J., Goodchild, M. F., Rhind, D. W. (eds.) Geographical Information Systems: Principles and Applications, vol. 1, pp. 147 (1991)
2. Trætteberg, H.: Model-based User Interface Design (2002). ISBN 82-471-5459-5
3. Norman, D.A.: The Psychology of Everyday Things. Basic Books, New York (1988)
4. Abowd, G.D., Beale, R.: Users, systems and interfaces: a unifying framework for interaction. In: Proceedings of the HCI’1991 conference on people and computers VI, 73 (1991)
5. McFarland, J., Sikkema, G.: Optical Image Pipeline: Development and Implementation. Experimental Astronomy, Astro-WISE issue (2011)