Dudkin , M. E., and O. Yu. Dyuzhenkova. “Two-Dimensional Half-Strong Real Moment Problem and the Corresponding Block Matrices. Part II”. Ukrains’kyi Matematychnyi Zhurnal, vol. 72, no. 10, Oct. 2020, pp. 1335-64, https://doi.org/10.37863/umzh.v72i10.6231.