LUCA, Florian; TOGBÉ, Alain. On the $x$-coordinates of Pell equations which are Fibonacci numbers. Mathematica Scandinavica, Berkeley, CA, United States, v. 122, n. 1, p. 18–30, 2018. DOI: 10.7146/math.scand.a-97271. Disponível em: https://journals.msp.org/mscand/article/view/287. Acesso em: 24 jul. 2026.