Rosin, Argo, Taavi Moller, Madis Lehtla, and Hardi Hoimoja. 2010. “Analysis of Household Electricity Consumption Patterns and Economy of Water Heating Shifting and Saving Bulbs”. Electrical, Control and Communication Engineering 26 (1): 15-20. https://doi.org/10.2478/v10144-010-0013-3.