ELA articles which reference this paper are

Karl-Heinz Foerster; Bela Nagy
On Spectra of Expansion Graphs and Matrix Polynomials, II,
Electron. J. Linear Algebra 9 (2002), 158-170.

Michael Neumann; Nic Ormes
Bounds for graph expansions via elasticity,
Electron. J. Linear Algebra 10 (2003), 163-178.