Bicyclic digraphs with maximal energy. - Juan Monsalve; Juan Rada (Appl. Math. Comput., 2016)

Maximal Augmented Zagreb Index of Trees With at Most Three Branching Vertices. - Roberto Cruz; Juan Daniel Monsalve; Juan Rada (IEEE Access, 2019)

Extremal values of energy over oriented bicyclic graphs. - Juan Monsalve; Juan Rada; Yongtang Shi (Appl. Math. Comput., 2019)

Extremal values of vertex-degree-based topological indices of chemical trees. - Roberto Cruz; Juan Monsalve; Juan Rada (Appl. Math. Comput., 2020)

Trees with maximum exponential Randić index. - Roberto Cruz; Juan Monsalve; Juan Rada (Discret. Appl. Math., 2020)

Vertex-degree based topological indices of digraphs. - Juan Monsalve; Juan Rada (Discret. Appl. Math., 2021)

The balanced double star has maximum exponential second Zagreb index. - Roberto Cruz; Juan Daniel Monsalve; Juan Rada (J. Comb. Optim., 2021)

Sharp Upper and Lower Bounds of VDB Topological Indices of Digraphs. - Juan Monsalve; Juan Rada (Symmetry, 2021)