Grigoreva, T. I. “Properties of Parabolic Kählerian Spaces Admitting an Almost Geodesic Mapping of the Type π2 With Degenerate Affinor Structure”. Ukrains’kyi Matematychnyi Zhurnal 59, no. 11 (November 25, 2007): 1574–1579. Accessed December 6, 2025. https://umj.imath.kiev.ua/index.php/umj/article/view/3412.