@article{Morgan2008,
author = {Morgan, S.L. and Todd, J.J.},
title= {A diagnostic routine for the detection of consequential heterogeneity of causal effects},
year = {2008},
doi = {10.1111/j.1467-9531.2008.00204.x},
volume = {38},
number = {1},
pages = {231--281},
}