1. Department of Glycochemistry; Institute of Chemistry; Slovak Academy of Sciences; Dúbravská cesta 9 84538 Bratislava Slovakia
2. Department of Chemistry; University of Natural Resources and Life Sciences; Muthgasse 18 1190 Vienna Austria
3. Department of Glycobiology; Institute of Chemistry; Slovak Academy of Sciences; Dúbravská cesta 9 84538 Bratislava Slovakia
4. Department of Structure and Function of Saccharides; Institute of Chemistry; Slovak Academy of Sciences; Dúbravská cesta 9 84538 Bratislava Slovakia
5. Institute of Biological Chemistry; Academia Sinica 128; Academia Road Sec. 2 115 Nankang Taipei Taiwan