ChimpanzoJ., Otero-EspinarM. V., BorgesA., VascoP., and CatarinoP. 2023. “Bidimensional Extensions of Cobalancing and Lucas-Cobalancing Numbers”. Annales Mathematicae Silesianae 38 (2), 241-62. https://journals.us.edu.pl/index.php/AMSIL/article/view/16430.