1. Brouwer, A.E., Haemers, W.H.: Spectra of Graphs. Springer, New York (2011)
2. Cvetković, D., Rowlinson, P., Simić, S.: An Introduction to the Theory of Graph Spectra. Cambridge University Press, Cambridge (2010)
3. Das, J., Mohanty, S.: On the spectral radius of bi-block graphs with given independence number $$\alpha $$. Appl. Math. Comput. 402, 125912 (2021)
4. Du, X., Shi, L.: Graphs with small independence number minimizing the spectral radius. Discrete Math. Algorithms Appl. 5, 1350017 (2013)
5. Godsil, C., Royle, G.: Algebraic Graph Theory, Graduate Texts in Mathematics, 207. Springer-Verlag, New York (2001)