On Hybrid Hyper k-Pell, k-Pell-Lucas, and Modified k-Pell Numbers. - Elen Viviani Pereira Spreafico; Paula Catarino; Paulo Vasco (Axioms, 2023)

On a Matrix Formulation of the Sequence of Bi-Periodic Fibonacci Numbers. - Mustapha Rachidi; Elen Viviani Pereira Spreafico; Paula Catarino (Axioms, 2024)

A Note on the Fuzzy Leonardo Numbers. - Elen Viviani Pereira Spreafico; Eudes Antonio Costa; Paula Maria Machado Cruz Catarino (TFSS, 2025)