M. S. Shneerson and Lоpatina T. M., “Conjugate functions relative to the constant $\bar\varepsilon$ and spinors ”, Ukr. Mat. Zhurn., vol. 23, no. 6, pp. 848–851, Oct. 1971, Accessed: Dec. 06, 2025. [Online]. Available: https://umj.imath.kiev.ua/index.php/umj/article/view/8640