Feliu, S., Mariaca, L., Simancas, J., González, J. A. and Morcillo, M. (2003) “Effect of NO2 and/or SO2 atmospheric contaminants and relative humidity on copper corrosion”, Revista de Metalurgia, 39(4), pp. 278–288. doi: 10.3989/revmetalm.2003.v39.i4.339.