1. Leibniz Institute for Catalysis Albert-Einstein-Str. 29a 18059 Rostock Germany
2. Institute of Chemistry Rostock University Albert-Einstein-Str. 3a 18059 Rostock Germany
3. Latvian Institute of Organic Synthesis Aizkraukles 21 1006 Riga Latvia
4. Department of Chemistry Humboldt-University of Berlin Brook-Taylor-Str. 2 12489 Berlin Germany
5. Institute of Chemistry University of Tartu Ravila 14a 50411 Tartu Estonia
6. Faculty of Chemistry University of Latvia Jelgavas 1 1004 Riga Latvia