Treatise on geochemistryHeinrich D. Holland, Karl K. Turekian, J.I. Drever, H. Elderfield, B. Sherwood Lollar, A.M. Davis, Ralph K. Keeling, F.T. Mackenzie · First published 2003Open the Tome
Development of an interferometric oxygen analyzer for precise measurement of the atmospheric O₂ mole fractionRalph Franklin Keeling · First published 1988Open the Tome