1. Surface analysis of explosion pulps by ESCA Part 1. Carbon (1s) spectra and oxygen-to-carbon ratios
2. L. Wågberg, G. Annergren, in: C.F Baker (Ed.), Fundamentals of papermaking materials, 11th Fundamental Research Symposium, Vol. 1, Cambridge, UK, 21–26 September 1997, Leatherhead, UK, Fundamental Research Committee and Pira International, 1997, p. 1.