Terminal alpha (1 leads to 4)-linked N-acetylglucosamine: a characteristic constituent of duodenal-gland mucous glycoproteins in rat and pig. A high-resolution 1H-NMR study. (1983)

van Halbeek H, Gerwig G, Vliegenthart J, Smits H, Van Kerkhof P, Kramer M
Biochim Biophys Acta, 1983 vol.747:107-116