İşcanM., and ÖzkanM. “On Four-Dimensional Paracomplex Structures With Norden Metrics”. Ukrains’kyi Matematychnyi Zhurnal 67, no. 1 (January 25, 2015): 32-41. Accessed November 24, 2024. https://umj.imath.kiev.ua/index.php/umj/article/view/1961.