1. Appel PWU (1987) Geochemistry of the Early Archaean Isua Iron-Formation, West Greenland. In:Appel PWU, LaBerge GL (eds) Precambrian Iron-Formations. Theophrastus Publications, Athens, pp 31?67
2. Bau M (in press) REE mobility during hydrothermal and metamorphic fluid-rock interaction and the significance of the oxidation state of europium. Chem Geol 93Bilal AL (in press) Thermodynamic study of Eu3+/Eu2+ redox reaction in aqueous solutions at elevated temperatures and pressures by means of cyclic voltammetry. Lanthan Actin Res
3. ? (subm) Note on the aqueous geochemistry of the rare-earth elements: Comments on ?The aqueous geochemistry of the rare-earth elements and yttrium. 2. Theoretical predictions of speciation in hydrothermal solutions to 350°C at saturation water vapor pressure? bySA Wood. Chem Geol
4. Campbell AC, Palmer MR, Klinkhammer GP, Bowers TS, Edmond JM, Lawrence JR, Casey JF, Thompson G, Humphries S, Rona P, Karson JA (1988) Chemistry of hot springs on the Mid-Atlantic Ridge. Nature 335: 514?519
5. Clar E, Meixner H (1953) Die Eisenspatlagerstätte von Hüttenberg und ihre Umgebung. Carinthia II 143/63: 67?92