"Can combining economizers with improved filtration save energy and protect equipment in data centers?." Building and Environment 45.3 (2010) 718-726. LBNL-2939E..
"How Does Your Data Center Measure Up? Energy Efficiency Metrics and Benchmarks for Data Center Infrastructure Systems." HPAC Journal (2009). LBNL-1960E..
Self-benchmarking Guide for Data Centers: Metrics, Benchmarks, Actions. 2009. LBNL-3393E..