Grunwald, A. J., Robertson, J. B. and Hatfield, J. J. (1980) ‘Evaluation of a computer-generated perspective tunnel display for flight path following’.
Theunissen, E. (2012) ‘From instruments to decision support: History, trends and (missed) opportunities’, in. (AIAA/IEEE Digital Avionics Systems Conference - Proceedings), pp. 1–19. doi: 10.1109/DASC.2012.6382947. [link]