Erhan Ata and  Yusuf Yaylı,  A Global Condition for the Triviality of an Almost Split Quaternionic Structure on Split Complex Manifolds.   journal   = {International Journal of Mathematical and Computational Sciences}, [online]. World Academy of Science, Engineering and Technology.
    July 2008, vol. 19(7). 466 - 470
    [viewed 16 April 2024]. Available from: https://publications.waset.org/pdf/3292.