“Deep Energy Retrofit Modeling and Cost Effectiveness Study: A Technical Policy Brief”. Prepared by the Rutgers Center for Green Building at Rutgers University for the Energy Efficient Buildings Hub, Philadelphia, PA. 2013. At http://rcgb.rutgers.edu/wp-content/uploads/2013/10/Subtask-6.2-No27-Attachment-6.2.3-RU-Deep-Energy-Retrofit-Modeling-and-Cost-Effectiveness-Study.pdf