BibTex format
@article{Halkos:2019:10.1016/j.eap.2019.01.005,
author = {Halkos, G and Petrou, KN},
doi = {10.1016/j.eap.2019.01.005},
journal = {Economic Analysis and Policy},
pages = {97--104},
title = {Treating undesirable outputs in DEA: A critical review},
url = {http://dx.doi.org/10.1016/j.eap.2019.01.005},
volume = {62},
year = {2019}
}