Before revision: In 1995, R. Hyde, K. Glover and G. T. Shanks published a paper describing the successful application of the technique to a VSTOL aircraft.
After revision: In 1995, R. Hyde, K. Glover and G. T. Shanks published a paperComputing and Control Engineering Journal, 6(1):11–16 describing the successful application of the technique to a VSTOL aircraft.