Algorithms for Sensor Systems 12th International Symposium on Algorithms and Experiments for Wireless Sensor Networks, ALGOSENSORS 2016, Aarhus, Denmark, August 25-26, 2016, Revised Selected Papers - Chrobak, Marek; Fernández Anta, Antonio; Gąsieniec, Leszek; Klasing, Ralf (Springer International Publishing : Imprint: Springer, 2017)