@article{Chesher1997,
author = {Andrew Chesher and Richard J Smith},
title = {Likelihood ratio specification tests},
journal = {Econometrica},
year = {1997},
month = {May},
volume = {565},
number = {3},
pages = {627-646},
url = {http://links.jstor.org/sici?sici=0012-9682%28199705%2965%3A3%3C627%3ALRST%3E2.0.CO%3B2-Z},
}