Controllability of NEPSes of graphs” Linear and Multilinear Algebra (2020). DOI: 10.1080/03081087.2020.1778622.

“Alexander Farrugia. “Spectral graph theory : from practice to theory” Symposia Melitensia, 16 (2020), 109-118.

Alexander Farrugia. “Edge Construction of Molecular NSSDs” Discrete Applied Mathematics, 266 (2019), 130–140.

Alexander Farrugia. “The Overgraphs of Generalized Cospectral Controllable Graphs” The Electronic Journal of Combinatorics, 26(1) (2019), P1.14.

Alexander Farrugia. “On Pseudo Walk Matrices” Discrete Mathematics Letters 1 (2019), 8-15.

Alexander Farrugia. “Combinatory Logic: From Philosophy and Mathematics to Computer Science”. In Proceedings of the ‘Breaking Barriers’ conference held at the University of Malta Junior College, 2018. Available at https://www.um.edu.mt/library/oar/handle/123456789/38118.

Alexander Farrugia. “The Connections of Connections: New Results on the Centrality and Communicability of Networks” Symposia Melitensia, 14 (2018), 257-269.

Alexander Farrugia. “The Increase in the Resolvent Energy of a Graph due to the Addition of a New Edge” Applied Mathematics and Computation, 321 (2018), 25-36.

Alexander Farrugia and Irene Sciriha. “Triangles in Inverse NSSD Graphs” Linear and Multilinear Algebra, 66(3) (2018), 540-546.

Alexander Farrugia. “Coulson-type Integral Formulae for the Energy Changes of Graph Perturbations” MATCH Communications in Mathematical and in Computer Chemistry, 77 (2017), 575-588.

Ivan Gutman, Boris Furtula, Alexander Farrugia and Irene Sciriha. “Constructing NSSD Molecular Graphs” Croatica Chemica Acta, 89(4) (2016), 449-454.

Irene Sciriha and Alexander Farrugia. “No Chemical Graph on more than two vertices is Nuciferous” Ars Mathematica Contemporanea, 11(2) (2016), 397-402.

Alexander Farrugia. “On Strongly Asymmetric and Controllable Primitive Graphs” Discrete Applied Mathematics, 211 (2016), 58-67.

Alexander Farrugia, John Baptist Gauci and Irene Sciriha. “Complete Graphs With Zero Diagonal Inverse” Ars Mathematica Contemporanea (Mathematical Chemistry Issue – In Memory of Ante Graovac), 11(2), (2016), 231-245.

Alexander Farrugia and Irene Sciriha. “On the Main Eigenvalues of Universal Adjacency Matrices and U-Controllable Graphs” Electronic Journal of Linear Algebra, 30 (2015), 812-826.

Alexander Farrugia, John Baptist Gauci and Irene Sciriha. “Non-Singular Graphs With a Singular Deck” Discrete Applied Mathematics, 202 (2015), 50-57.

Alexander Farrugia and Irene Sciriha. “Controllability of Undirected Graphs” Linear Algebra and its Applications, 454 (2014), 138-157.

Irene Sciriha, Alexander Farrugia and John Baptist Gauci. “The Adjacency Matrices of Complete and Nutful Graphs” MATCH Communications in Mathematical and in Computer Chemistry, 72 (2014), 165-178.

Alexander Farrugia and Irene Sciriha. “The Main Eigenvalues and Number of Walks in Self-Complementary Graphs” Linear and Multilinear Algebra, 62(10) (2014), 1346-1360.

Alexander Farrugia, John Baptist Gauci and Irene Sciriha. “On the Inverse of the Adjacency Matrix of a Graph” Special Matrices, 1 (2013), 28-41 (most downloaded paper of Special Matrices journal as of February 2018)