M. M. Ibragimov, S. J. Tleumuratov, and J. Seypullaev, “Some geometric properties of a strongly facially symmetric space”, MFAT, vol. 11, no. 3, pp. 234–238, Sep. 2005, Accessed: Feb. 04, 2026. [Online]. Available: https://zen.imath.kiev.ua/index.php/mfat/article/view/281