@article{GDZPPN002068869,
title = {On Cheeger's inequality.},
journal = {Commentarii mathematici Helvetici},
volume = {68},
year = {1993},
pages = {599-621},
zbl = {0809.53049},
url = {http://dml.mathdoc.fr/item/GDZPPN002068869}
}
Brooks, R.; Perry, P.; V, Petersen; P. On Cheeger's inequality.. Commentarii mathematici Helvetici, Tome 68 (1993) pp. 599-621. http://gdmltest.u-ga.fr/item/GDZPPN002068869/