Latimer, Jennifer C.; Filippelli, Gabriel M.; Hendy, Ingrid; Newkirk, Derrick R. (2006): Opal-associated particulate phosphorus; implications for the marine P cycle. Elsevier, New York, NY, International, Geochimica et Cosmochimica Acta, 70 (15), 3843-3854, georefid:2007-110003