CĂLBUREAN, P. A., and M. MĂRUŞTERI. “Correlation Between Vectorcardiographic and Echocardiographic Parameters in Patients With Cardiac Resynchronization Therapy”. Applied Medical Informatics, vol. 41, no. Suppl. 1, Sept. 2019, p. 30, https://ami.info.umfcluj.ro/index.php/AMI/article/view/738.