Aycard, Mylene; Derenne, Sylvie; Largeau, Claude; Mongenot, Thierry; Tribovillard, Nicolas; Baudin, Francois (2003): Formation pathways of proto-kerogens in Holocene sediments of the upwelling influenced Cariaco Trench, Venezuela. Pergamon, Oxford-New York, International, Organic Geochemistry, 34 (6), 701-718, georefid:2003-047758