1. Adler, E. 1977: Lignin-chemistry ? past, present and future. Wood Sci. Technol. 11: 169?218
2. Allsopp, A.; Misra, P. 1940: The constitution of the cambium, the new wood, and the mature sapwood of the common ash, the common elm, and the Scotch pine. Biochem. J. 34: 1078?1084
3. Asunmaa, S.; Lange, P. W. 1953: Esterification of the carbohydrates in the plant cell wall with p-phenylazobenzoyl chloride for microspectrographic investigation. Svensk Papperstidn. 56: 85?90
4. Asunmaa, S.; Lange, P. W. 1954a: A note on the changes in cell wall dimensions of carbohydrate fibres after esterification with p-phenylazobenzoyl chloride and subsequent swelling in pyridine. Svensk Papperstidn. 57: 498?500
5. Asunmaa, S.; Lange, P. W. 1954b: The distribution of ?cellulose? and ?hemicellulose? in the cell wall of spruce, birch and cotton. Svensk Papperstidn. 57: 501?516