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@article{DBLP:journals/eor/Ruggiero04,
author = {John Ruggiero},
title = {Performance evaluation when non-discretionary factors correlate
with technical efficiency},
journal = {European Journal of Operational Research},
volume = {159},
number = {1},
year = {2004},
pages = {250-257},
ee = {http://dx.doi.org/10.1016/S0377-2217(03)00403-X},
bibsource = {DBLP, http://dblp.uni-trier.de}
}
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