@book{RB-9433-BMG/JOY/WPF,
author="Zimmer, Ron and Brian Gill and Kevin Booker and Stephane Lavertu and Tim R. Sass and John Witte",
title="Are Charter Schools Making a Difference? A Study of Student Outcomes in Eight States",
address="Santa Monica, CA",
year="2009",
doi="10.7249/RB9433",
publisher="RAND Corporation"
}