Amar Rasheed Rabi N. Mahapatra Key Predistribution Schemes for Establishing Pairwise Keys with a Mobile Sink in Sensor Networks. 176-184 2011 22 IEEE Trans. Parallel Distrib. Syst. 1 http://doi.ieeecomputersociety.org/10.1109/TPDS.2010.57 db/journals/tpds/tpds22.html#RasheedM11