Federspiel, C.; & Villafana, L.(2003). Design of an energy and maintenance system user interface for building occupants. Center for the Built Environment. UC Berkeley: Center for the Built Environment. Retrieved from: http://www.escholarship.org/uc/item/8gk3j69k
Federspiel, C.; & Villafana, L.(2003). Design of a maintenance and operations recommender. Center for the Built Environment. UC Berkeley: Center for the Built Environment. Retrieved from: http://www.escholarship.org/uc/item/53p2f18d