@article{Chesher1995,
author = {Andrew Chesher and Richard J Smith},
title = {Bartlett corrections to likelihood ratio statistics},
journal = {Biometrika},
year = {1995},
month = {Jun},
volume = {82},
number = {2},
pages = {433-436},
url = {http://links.jstor.org/sici?sici=0006-3444%28199506%2982%3A2%3C433%3ABCTLRT%3E2.0.CO%3B2-M},
}