Mark Chapman George I. Davida Marc Rennhard A Practical and Effective Approach to Large-Scale Automated Linguistic Steganography. 156-165 2001 conf/isw/2001 ISC http://link.springer.de/link/service/series/0558/bibs/2200/22000156.htm db/conf/isw/isc2001.html#ChapmanDR01