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3. L. Audin, Occupancy sensors: promise and pitfalls, E-Source Tech Update, Old Snowmass, CO, 1993.
4. CADDET, Saving energy with efficient lighting in commercial buildings, Maxi Brochure 01, Centre for the Analysis and Dissemination of Demonstrated Energy Technologies, Sittard, The Netherlands, 1995.
5. California Energy Commission (CEC), Advanced Lighting Guidelines, CEC Publication 400-93-014, Sacramento, CA, California Energy Commission, 1993.