Every reference with a DOI in the deposited reference list resolved to a known
work in Crossref or DataCite at the dated check, and none carried a retraction,
withdrawal, or removal notice.
The 12 references without a DOI — listed, not checked
no DOI — not checkedS.D. Cramer, L.G. McDonald, J.W. Spence, Proc. 12th Int. Corr. Congr., Houston, USA, 1993, p. 722
no DOI — not checkedK.P. Fitzgerald, Natural copper patina, Thesis, Department of Mining and Metallurgical Engineering, University of Queensland, Australia, 1996
no DOI — not checkedO. von Franqué, Baumet, 1986, p. 2
no DOI — not checkedL. Granat, Swedish Environmental Protection Agency, Report 4214, 1992 (in Swedish)
no DOI — not checkedW. He, Corrosion rates and runoff rates of copper and zinc as roofing materials – a combined field and laboratory study, Licentiate Thesis, Royal Institute of Technology, Stockholm, ISBN 91-7170-527-9, 2000
no DOI — not checkedW. He, I. Odnevall Wallinder, C. Leygraf, Water, Air Soil Poll., in press
no DOI — not checkedL. Landner, L. Lindeström, Copper in Society and in the Environment, second ed., Swedish Environmental Research Group (MFG), 1999
no DOI — not checkedB. Lehmann, Freiwitterungsverhalten von Däckern mit Metalldeckung. Untersuchung zur Zinkgabe von Dackdeckungen mit Titanzink, Dissertation, Universität von Hannover, 1995
no DOI — not checkedJ. Nairn, K. Fitzgerald, A. Atrens, Proc. ACA Conference, Australia, 1994
no DOI — not checkedI. Odnevall Wallinder, C. Leygraf, 14th Int. Corr. Congr., Cape Town, South Africa, 1999
no DOI — not checkedJ. Sternbeck, IVL, Swedish Environmental Research Institute, Report B1349, 2000 (in Swedish)
no DOI — not checkedUN/ECE International co-operative programme on effects on materials, including historic and cultural monuments, Report no. 23: Corrosion attack on copper and cast bronze. Evaluation after 8 years of exposure, Bavarian State Conservation office, Munich, Germany, 1998
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