Urdaletova, Anarkul, Syrgak Kydyraliev, and Elena Burova. “SOLUTION OF SOME LINEAR SYSTEMS OF ORDINARY DIFFERENTIAL EQUATIONS WITH VARIABLE COEFFICIENTS”. Advances in Differential Equations and Control Processes 29 (January 10, 2025). Accessed March 10, 2025. https://ojs.acad-pub.com/index.php/ADECP/article/view/2559.