Jiashang Jiang and  Yongxin Yuan,  The Direct Updating of Damping and Gyroscopic Matrices using Incomplete Complex Test Data.   journal   = {International Journal of Mathematical and Computational Sciences}, [online]. World Academy of Science, Engineering and Technology.
    July 2011, vol. 55(7). 924 - 927
    [viewed 08 May 2024]. Available from: https://publications.waset.org/pdf/10047.