@article{articleb5848927,
title   = {Constraining the dark energy and smoothness paramenter with type Ia supernovae and gamma-ray bursts},
author = {Busti, V. C and Santos, R. C and Lima, José Ademir Sales de},
year = {2012},
doi = {10.1103/physrevd.85.103503},
journal   = {Physical Review D}
}