Stephen Wilson Digital signatures and the future of documentation. 83-87 1999 7 Inf. Manag. Comput. Security 2 http://ariel.emeraldinsight.com/vl=1708920/cl=125/nw=1/rpsv/cgi-bin/linker?ini=emerald&reqidx=/cw/mcb/09685227/v7n2/s3/p83 db/journals/imcs/imcs7.html#Wilson99