APA

Fietz, S., Huguet, C., Bendle, J., Escala, M., Gallacher, C., Herfort, L., Jamieson, R., Martinez-Garcia, A., McClymont, E., Peck, V., Prahl, F., Rossi, S., Rueda, G., Sanson-Barrera, A., & Rosell-Mele, A. (2012). Co-variation of crenarchaeol and branched GDGTs in globally-distributed marine and freshwater sedimentary archives. : Elsevier.