@article {uvigo:analysispilot,
	title = {Analysis of Pilot-Based Synchronization Algorithms for Watermarking of Still Images},
	journal = {Signal Processing: Image Communication},
	volume = {17},
	number = {8},
	year = {2002},
	month = {September},
	pages = {661-633},
	keywords = {data-hiding, watermarking},
	author = {Manuel Alvarez-Rodr{\'\i}guez and Fernando P{\'e}rez-Gonz{\'a}lez}
}
