1. Executive Summary, Proceedings of the RTO Worshop on Search and Target Acqisition;Toet;RTO-MP-045, NATO RTO,2000
2. Guidelines for camouflage assessment using observers;Ronconi;Tech. Rep. RTO-AG-SCI-095, NATO-RTO,2007
3. Target acquisition performance: effects of target aspect angle, dynamic imaging, and signal processing;Beintema,2008
4. Urban camouflage assessment through visual search and computational saliency
5. Search by photo methodology for signature properties assessment by human observers;Sejl,2015