@conference {acm07pedro,
	title = {On the capacity of stegosystems},
	booktitle = {ACM Workshop on Multimedia and Security (MMSEC)},
	year = {2007},
	month = {September},
	pages = {1261-1264},
	address = {Dallas, TX, USA},
	keywords = {data-hiding, steganography, watermarking},
	author = {Pedro Comesa{\~n}a and Fernando P{\'e}rez-Gonz{\'a}lez}
}
