Vugdalić, R. “EXAMPLES OF GROUP exp(tA) (t in R) OF 2x2 REAL MATRICES IN CASE MATRIX A DEPENDS ON SOME REAL PARAMETERS”. Balkan Journal of Applied Mathematics and Informatics, Vol. 3, no. 1, June 2020, pp. pp. 55-62, https://js.ugd.edu.mk/index.php/bjami/article/view/3516.