1. Wilson, I.B.H., Paschinger, K., Rendić, D.: Glycosylation of model and “Lower” organisms. In: Gabius, H.-J. (ed.) The Sugar Code, pp. 139–154. Wiley-VCH, Weinheim (2009)
2. Stepan, H., Pabst, M., Altmann, F., Geyer, H., Geyer, R., Staudacher, E.: O-Glycosylation of snails. Glycoconjugate J 29, 189–198 (2012)
3. Bennett, E.P., Mandel, U., Clausen, H., Gerken, T.A., Fritz, T.A., Tabak, L.A.: Control of mucin-type O-glycosylation: a classification of the polypeptide GalNAc-transferase gene family. Glycobiology 22, 736–756 (2012)
4. Brockhausen, I., Schachter, H., Stanley, P.: O-GalNAc glycans. In: Varki, A., Cummings, R.D., Esko, J.D., Freeze, H.H., Stanley, P., Bertozzi, C.R., Hart, G.W., Etzler, M.E. (eds.) Essentials of Glycobiology, pp. 115–127. Cold Spring Harbor, Laboratory Press, New York (2008)
5. Raman, J., Guan, Y., Perrine, C.L., Gerken, T.A., Tabak, L.A.: UDP-N-acetyl-α-D-galactosamine:polypeptide N-acetylgalactosaminyltransferases: completion of the family tree. Glycobiology 22, 768–777 (2012)