@article{01310576, title = {Spectral properties of high contrast band-gap materials and operators on graphs.}, journal = {Experimental Mathematics}, volume = {8}, year = {1999}, pages = {1-28}, doi = {10.1080/10586458.1999.10504384}, zbl = {0930.35112}, language = {en}, url = {http://dml.mathdoc.fr/item/01310576} }
Kuchment, Peter; Kunyansky, Leonid A. Spectral properties of high contrast band-gap materials and operators on graphs.. Experimental Mathematics, Tome 8 (1999) pp. 1-28. doi : 10.1080/10586458.1999.10504384. http://gdmltest.u-ga.fr/item/01310576/