Author: Keskin, Refik

Şiar, Zafer; Keskin, Refik; Öztaş, Elif Segah: On perfect powers in $k$-generalized Pell sequence. (English). Mathematica Bohemica, vol. 148 (2023), issue 4, pp. 507-518
Keskin, Refik; Erduvan, Fatih: Repdigits in the base $b$ as sums of four balancing numbers. (English). Mathematica Bohemica, vol. 146 (2021), issue 1, pp. 55-68
Keskin, Refik; Şiar, Zafer; Karaatlı, Olcay: On the Diophantine equation $x^{2}-kxy+y^{2}-2^{n}=0$. (English). Czechoslovak Mathematical Journal, vol. 63 (2013), issue 3, pp. 783-797

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