O. Sukhorukova, “Factorization formulas for some classes of generalized $J$-inner matrix valued functions”, MFAT, vol. 20, no. 4, pp. 365–378, Dec. 2014, Accessed: Dec. 16, 2025. [Online]. Available: https://zen.imath.kiev.ua/index.php/mfat/article/view/592