Fabian L. Mueller Carl Binding Olle Sundström Michael Bengsch Minimum-cost charging of electrical storage heaters. 740-745 2014 SmartGridComm https://doi.org/10.1109/SmartGridComm.2014.7007736 conf/smartgridcomm/2014 db/conf/smartgridcomm/smartgridcomm2014.html#MuellerBSB14