On certain applications of the Hadamard product. - Lucyna Trojnar-Spelina (Appl. Math. Comput., 2008)

On Pell numbers and (k1, A1, k2, A2, k3, A3)-edge colouring in graphs. - Lucyna Trojnar-Spelina; Iwona Wloch (Ars Comb., 2016)

On (A, 2B, 2C)-edge colouring in certain class of graphs. - Krzysztof Piejko; Lucyna Trojnar-Spelina (Ars Comb., 2018)