%0 Journal Article %T Provably secure time distribution for the electric grid %A Smith, A. M. %A Evans, P. G. %A Williams, B. P. %A Grice, W. P. %J Proceedings of SPIE %V 9500 %P 950007-950007-4 %@ 0277-786X %D 2015-05-21 %I SPIE %~ DeepDyve