@article {Evaluating2000,
title = {Evaluating Programmes:Experiments, Non-Experiments and Propensity Scores},
year = {2000},
url = {https://www.esri.ie/publications/evaluating-programmes-experiments-non-experiments-and-propensity-scores},
author = {Conniffe, Denis and Gash, Vanessa and O'Connell, Philip J},
journal = {ESRI Working Paper 126},
}