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@article{Authenticus:P-003-4RN,
title = {{Direct perturbations of aggregate excess demand}},
author = {SBSD Castro and S Dakhlia and PB Gothen},
doi = {10.1016/j.jmateco.2010.03.008},
journal = {Journal of Mathematical Economics},
number = {4},
pages = {562-571},
publisher = {Elsevier Science Sa},
type = {Article},
volume = {46},
year = {2010}
}