1. Department of Organic Chemistry; Faculty of Science; Charles University in Prague; Albertov 2030 128 43 Praha 2 Czech Republic
2. Department of Inorganic & Organic Chemistry; Faculty of Pharmacy in Hradec Králové; Charles University in Prague; Akademika Heyrovského 1203 500 05 Hradec Králové Czech Republic
3. Department of Teaching and Didactics of Chemistry; Faculty of Science; Charles University in Prague; Albertov 2030 128 43 Praha 2 Czech Republic