BibTex format
@article{Lim:2011:10.1016/j.orl.2011.03.004,
author = {Lim, AEB and Shanthikumar, JG and Vahn, G-Y},
doi = {10.1016/j.orl.2011.03.004},
journal = {Operations Research Letters},
pages = {163--171},
title = {Conditional value-at-risk in portfolio optimization: Coherent but fragile},
url = {http://dx.doi.org/10.1016/j.orl.2011.03.004},
volume = {39},
year = {2011}
}