@article{Machin2004,
author = {Steve Machin and Sandra McNally and Costas Meghir},
title = {Improving pupil performance in English secondary schools: Excellence in Cities},
journal = {Journal of the European Economic Association},
year = {2004},
month = {Apr},
volume = {2},
number = {2-3},
pages = {569-606},
url = {},
}