Szynal-Liana, Anetta, and Iwona Włoch. “On Jacobsthal and Jacobsthal-Lucas Hybrid Numbers”. Annales Mathematicae Silesianae 33 (October 27, 2018): 276–283. Accessed May 7, 2025. https://trrest.vot.pl/ojsus/index.php/AMSIL/article/view/13672.