V. I. Rukasov and O. I. Stepanets, “Spaces $S^p$ with Nonsymmetric Metric”, Ukr. Mat. Zhurn., vol. 55, no. 2, pp. 264–277, Feb. 2003, Accessed: Dec. 05, 2025. [Online]. Available: https://umj.imath.kiev.ua/index.php/umj/article/view/3904