1. Department of Chemistry; University of Natural Resources and Life Sciences; 1190; Vienna; Austria
2. Department of Chemistry; University of Vienna; 1190; Vienna; Austria
3. Unité de Glycobiologie Structurale et Fonctionnelle; Université des Sciences et Technologies de Lille 1; 59650; Villeneuve d'Ascq; France
4. Department of Chemistry; 8010 Technical University of Graz; Graz; Austria
5. Core Facility Mass Spectrometry; 8036 Medical University of Graz; Graz; Austria