Soykan, Y. (2020). On Four Special Cases of Generalized Tribonacci Sequence: Tribonacci-Perrin, modified Tribonacci, modified Tribonacci-Lucas and adjusted Tribonacci-Lucas Sequences. Journal of Progressive Research in Mathematics, 16(3), 3056-3084. Retrieved from http://scitecresearch.com/journals/index.php/jprm/article/view/1878