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2. Regional differences in Pb isotopic compositions of feldspars in plutonic rocks of the Northern Appalachian mountains, U.S.A., and Canada: A geochemical method of terrane correlation;Ayuso;Tectonics,1991
3. Pb isotopic ratios of Paleozoic granitoids from Miramichi terrane, New Brunswick, and implications for the nature and age of the basement rocks;Bevier,1987
4. Pb-isotope analysis of sulphides and Kffeldspars. A short introduction to analytical techniques and evaluation of results;Birkeland,1990
5. Pb isotopic constraints on the origin of the Husvika ZnPb deposit in Nordland, north-central Norway;Birkeland;Nor. Ged. Tiddskr.,1993