Clemens Moser Lothar Thiele Davide Brunelli Luca Benini Approximate Control Design for Solar Driven Sensor Nodes. 634-637 2008 HSCC http://dx.doi.org/10.1007/978-3-540-78929-1_52 conf/hybrid/2008 db/conf/hybrid/hscc2008.html#MoserTBB08