Characterization by Gas-Liquid chromatography-mass spectrometry and proton-magnetic-resonance spectroscopy of pertrimethylsilylmethyl glycosides obtained in the methanolysis of glycoproteins and glycopeptides - Kamerling, J P; Gerwig, G J; Vliegenthart, J F G; Clamp, J R (Biochem J, 1975)