Repdigits as Sums of Four Fibonacci or Lucas Numbers. - Benedict Vasco Normenyo; Florian Luca; Alain Togbé (J. Integer Seq., 2018)

Repdigits as sums of three Pell numbers. - Benedict Vasco Normenyo; Florian Luca; Alain Togbé (Period. Math. Hung., 2018)

Repdigits as Sums of Two Fibonacci Numbers and Two Lucas Numbers. - Benedict Vasco Normenyo; Bir Kafle; Alain Togbé (Integers, 2019)