Makarov, K.A., Belyi, S. and Tsekanovskii, E. (2015) “Conservative L-systems and the Livšic function”, Methods of Functional Analysis and Topology, 21(2), pp. 104–133. Available at: https://zen.imath.kiev.ua/index.php/mfat/article/view/606 (Accessed: 16 December 2025).