SHTURM-LIUVILL ОPЕRАTОRINING SPЕKTRАL NАZАRIYАSI VА DIFFЕRЕNSIАL TЕNGLАMАLАR UCHUN LОKАL SHАRTLI MАSАLАLАRNING О’ZIGА XОS YЕCHILISHI. (2026). Journal of Universal Science Research, 4(3), 124-132. http://universalpublishings.com/index.php/jusr/article/view/17475