33. Cox, G.A.; Heavens, O.S.; Newton, R.G.; Pollard, A.M. A study of the weathering behaviour of medieval glass from York Minster. J. Glass Stud. 1979, 21, 54–75. 34. Gentaz, L.; Lombardo, T.; Loisel, C.; Chabas, A.; Vallotto, M. Early stage of weathering of ...