Tkachuk, M. V., and S. A. Plaksa. “An Analog of the Men’shov – Trokhimchuk Theorem for Monogenic Functions in a Three-Dimensional Commutative Algebra”. Ukrains’kyi Matematychnyi Zhurnal, Vol. 73, no. 8, Aug. 2021, pp. 1120 -28, doi:10.37863/umzh.v73i8.6658.