[1] Diudea, M.V., Florescu, M.S. and Khadikar, P.V. (2006) Molecular Topolgy and Its Applications. Eficon, Bucarest.
[2] Diudea, M.V. (2010) Nanomolecules and Nanostructures-Poynomial and Indices. Univ. Kragujevac, Kragujevac.
[3] Gutman, I. and Furula, B. (2012) Distance in Molecular Graphs. Univ. Kragujevac, Kragujevac.
[4] Gutman, I. and Furula, B. (2010) Novel Molecular Structure Descriptors-Theory and Applications II. Univ. Kragujevac, Kragujevac.
[5] Karelson, M. (2000) Molecular Descriptors in QSAR-QSPR. Wiley, New York.
[6] Todeschini, R. and Consonni, V. (2000) Handbook of Molecular Descriptors. Wiley-VCH, Weinheim.
https://doi.org/10.1002/9783527613106
[7] Todeschini, R. and Consonni, V. (2009) Molecular Descriptors for Chemoinformatics. Wiley-VCH, Weinheim, Vols. I and II.
https://doi.org/10.1002/9783527628766
[8] Gutman, I. and Trinajstic, N. (1972) Graph Theory and Molecular Orbitals, Total π-Electron Energy of Alternant Hydrocarbons. Chemical Physics Letters, 17, 535-538.
https://doi.org/10.1016/0009-2614(72)85099-1
[9] Das, K.C., Yurttas, A., Togan, M., Cevik, A.S. and Cangul, I.N. (2013) The Multiplicative Zagreb Indices of Graph Operation. Journal of Inequalities and Applications, 2013, Article No. 90.
https://doi.org/10.1186/1029-242X-2013-90
[10] Alwardi, A., Alqesmah, A., Rangarajan, R. and Cangul, I.N. (2018) Entire Zagreb Indices of Graphs. Discrete Mathematics, Algorithms and Applications, 10, Article ID: 1850037.
https://doi.org/10.1142/S1793830918500374
[11] Braun, J., Kerber, A., Meringer, M. and Rucker, C. (2005) Similarity of Molecular Descriptors: The Equivalence of Zagreb Indices and Walk Counts. MATCH Communications in Mathematical and in Computer Chemistry, 54, 163-176.
[12] Gutman, I. and Das, K.C. (2004) The First Zagreb Index 30 Years after. MATCH Communications in Mathematical and in Computer Chemistry, 50, 83-92.
[13] Khalifeh, M.H., Youse-Azari, H. and Ashra, A.R. (2009) The First and Second Zagreb Indices of Some Graph Operations. Discrete Applied Mathematics, 157, 804-811.
https://doi.org/10.1016/j.dam.2008.06.015
[14] Nikolić, S., Kovacević, G., Milicević, A. and Trinajstić, N. (2003) The Zagreb Indices 30 Years after. Croatica Chemica Acta, 76, 113-124.
[15] Zhou, B. and Gutman, I. (2005) Further Properties of Zagreb Indices. MATCH Communications in Mathematical and in Computer Chemistry, 54, 233-239.
[16] Zhou, B. and Gutman, I. (2004) Relations between Wiener, Hyper-Wiener and Zagreb Indices. Chemical Physics Letters, 394, 93-95.
https://doi.org/10.1016/j.cplett.2004.06.117
[17] Zhou, B. (2004) Zagreb Indices. MATCH Communications in Mathematical and in Computer Chemistry, 52, 113-118.
[18] Ramaswamy, H.N., Alwardi, A. and Kumar, N.R. (2017) On the Locating Matrix of a Graph and Its Spectral Analysis. Computer Science Journal of Moldova, 25, 260-277.
[19] Chartand, G. and Lesniak, L. (2005) Graphs and Digraphs. 4th Edition, CRC Press, Boca Raton.
[20] Li, J.X., Guo, J.M. and Shiu, W.C. (2013) On the Second Largest Laplacian Eignvalues of Graphs. Linear Algebra and Its Applications, 438, 2438-2446.
https://doi.org/10.1016/j.laa.2012.10.047