%0 Journal Article %T Modeling social services performance: a four-stage DEA approach to evaluate fundraising efficiency, capacity building, service quality, and effectiveness in the nonprofit sector %A Medina-Borja, Alexandra %A Triantis, Konstantinos %J Annals of Operations Research %V 221 %N 1 %P 285-307 %@ 0254-5330 %D 2011-06-30 %I Springer US %~ DeepDyve