[1]
V. M. Molyboga and V. A. Mikhailets, “Spectral gaps of the Hill-Schrödinger operators with distributional potentials”, MFAT, vol. 20, no. 4, pp. 321–327, Dec. 2014, Accessed: Feb. 04, 2026. [Online]. Available: https://zen.imath.kiev.ua/index.php/mfat/article/view/589