Xayitova Xilola G’afurovna, and Ikromova Sarvinoz Ismoil qizi. “OLMOS PANJARADAGI DISKRET SHRYODINGER OPERATORINING SPEKTRI”. Journal of New Century Innovations, vol. 29, no. 2, May 2023, pp. 120-5, https://newjournal.org/new/article/view/6701.