Gryshchuk, S., and S. Plaksa. “A Hypercomplex Method for Solving Piecewise Continuous Biharmonic Problem in Domains With Corner Points”. Ukrains’kyi Matematychnyi Zhurnal, vol. 77, no. 11, Oct. 2025, pp. 659–691, https://doi.org/10.3842/umzh.v77i11.9215.