Grigoreva, T. I. “Properties of Parabolic Kählerian Spaces Admitting an Almost Geodesic Mapping of the Type π<sub>2 </sub&gt; With Degenerate Affinor Structure”. Ukrains’kyi Matematychnyi Zhurnal, Vol. 59, no. 11, Nov. 2007, pp. 1574–1579, https://umj.imath.kiev.ua/index.php/umj/article/view/3412.