F. Ibrahimov, K. Huseynova, N. Babayeva, S. Shahuseynov, and R. Jamilov, “Cardiopulmonary Effects of Combined β1-Selective Blockers, Ivabradine, and β2-Agonists in Ischemic Heart Disease with Chronic Obstructive Pulmonary Disease”, JHDT, vol. 3, no. 01, pp. 24–26, Mar. 2026.