Niemann, H, Linke, P, Knittel, K, MacPherson, E, Boetius, A, Brückmann, W, Lavik, G, Wallmann, K, Schacht, U, Omoregie, E, Hilton, D, Brown, K and Rehder, G (2013) Methane-carbon flow into the benthic food web at cold seeps - a case study from the Costa Rica subduction zone. PLoS ONE, 8(10). e74894. doi:10.1371/journal.pone.0074894
Kutterolf, S, Schacht, U, Wehrmann, H, Freundt, A and Mörz, T (2006) Onshore to offshore tephrostratigraphy and marine ash layer diagenesis in Central America. In: Bundschuh, J and Alvarado , GE (eds.) Central America: Geology, Resources and Hazards. Taylor & Francis, London, 395-422. ISBN 978-0-415-41648-1