Igor Astrov and  Mikhail Pikkov and  Rein Paluoja,  LQG Flight Control of VTAV for Enhanced Situational Awareness.   journal   = {International Journal of Aerospace and Mechanical Engineering}, [online]. World Academy of Science, Engineering and Technology.
    September 2013, vol. 82(10). 2044 - 2049
    [viewed 11 May 2024]. Available from: https://publications.waset.org/pdf/17177.