1. Stratigraphy, petrology, and platinum-group element mineralization of the Early Proterozoic Penikat Layered Intrusion, Northern Finland;Alapieti;Econ. Geol.,1986
2. Unusual nickel and copper to noble-element ratios from the Rana Layered Intrusion, northern Norway;Barnes;Norsk Geol. Tidsskr.,1987
3. The use of mantle normalization and metal ratios indiscriminating between the effects of partial melting, crystal fractionation and sulphide segregation on platinum-group elements, gold, nickel and copper: examples from Norway;Barnes,1988
4. Grant 106, platinum-group elements in layered intrusions;Borthwick;Ont. Geol. Surv., Misc. Pap.,1984
5. A model for the origin of the platinum-rich sulphide horizons in the Bushveld and Stillwater Complexes;Campbell;J. Petrol.,1983