Makarov, V. L., Khlobystov, V. V., & Kashpur, O. F. (2020). Operator interpolation and systems of linear equations and inequalities in Euclidean spaces. Ukrains’kyi Matematychnyi Zhurnal, 72(11), 1524-1534. https://doi.org/10.37863/umzh.v72i11.6201