@inbook{Singer2008,
author = {Singer, A. },
title= {Twenty-First-Century Gateways: An Introduction},
year = {2008},
editor = {Singer, A.},
editor = {Hardwick, S.W.},
editor = {Brettell, C.B.},
booktitle = {Twenty-first Century Gateways},
address = {Washington, D.C.},
publisher = {Brookings Institution},
}