Plaksa, S. A., and R. P. Pukhtaevich. 2013. “Constructive Description of Monogenic Functions in a Three-Dimensional Harmonic Algebra With One-Dimensional Radical”. Ukrains’kyi Matematychnyi Zhurnal 65 (5), 670–680. https://umj.imath.kiev.ua/index.php/umj/article/view/2450.