A General Platform for Robot Navigation in Natural Environments. - Enric Celaya; Tom Creemers; Jose-Luis Albarral (CLAWAR, 2005)

Extraction of significant regions in color images for landmark identification. - Jose-Luis Albarral; Enric Celaya (ICINCO-RA, 2006)

Natural Landmark Detection for Visually-Guided Robot Navigation. - Enric Celaya; Jose-Luis Albarral; Pablo Jiménez; Carme Torras (AI*IA, 2007)

Visually-Guided Robot Navigation: From Artificial to Natural Landmarks. - Enric Celaya; Jose-Luis Albarral; Pablo Jiménez; Carme Torras (FSR, 2007)