Bortels, L.; Chan, J. C.--W.; Merken, R.; Koedam, N. (2011). Long-term monitoring of wetlands along the Western-Greek Bird Migration Route using Landsat and ASTER satellite images: Amvrakikos Gulf (Greece). J. Nat. Conserv. 19(4): 215-223. https://dx.doi.org/10.1016/j.jnc.2011.01.004, more
Bortels, L. (2009). Monitoring wetlands along the ‘Western-Greek Bird Migration Route’ using Landsat and ASTER satellite images: Amvrakikos Gulf (Greece). MA Thesis. Vrije Universiteit Brussel: Brussel. 102 pp., more
Bortels, L.; Cheung-Wai Chan, J.; Merken, R.; Bazigou, F.M.; Koedam, N. (2009). Monitoring wetlands along the Western-Greek Bird Migration Route: Amvrakikos Gulf (Greece), in: Mees, J. et al. (Ed.) Book of abstracts: an overview of marine research in Belgium anno 2009. 10th VLIZ Young Scientists' Day. Special edition at the occasion of 10 years VLIZ. VLIZ Special Publication, 43: pp. 19, more