1. 1) Montreuil, J., Vliegenthart, J.F.G. and Schachter, H. (1995) Glycoproteins I. New comprehensive biochemistry, vol. 29a, Elsevier, Amsterdam.
2. 2) Montreuil, J., Vliegenthart, J.F.G. and Schachter, H. (1997) Glycoproteins II. New comprehensive biochemistry, vol. 29b, Elsevier, Amsterdam.
3. 3) Varki, A., Cummings, R.D., Esko, J.D., Freeze, H., Stanley, P., Bertozzi, C.R. and Eizler, M.E. (2009) Essentials of Glycobiology. Cold Spring Harbour Press, New York.
4. 4) Hofsteenge, J., Müller, D.R., De Beer, T., Löffler, A., Richter, W.J. and Vliegenthart, J.F.G. (1994) New type of linkage between a carbohydrate and a protein: C-glycosylation of a specific tryptophan residue in human RNase Us. Biochemistry 33, 13524–13530.
5. 5) De Beer, T., Vliegenthart, J.F.G., Löffler, A. and Hofsteenge, J. (1995) The hexopyranosyl residue that is C-linked to the side-chain of tryptophan in human RNase Us is α-mannopyranose. Biochemistry 34, 11785–11789.