1. Ecological Chemistry Group; Division of Organic Chemistry; Department of Chemistry; School of Chemistry and Engineering; Royal Institute of Technology; Teknikringen 36 SE-10044 Stockholm Sweden
2. Laboratory of Chemical and Behavioural Ecology; Institute of Ecology; Nature Research Centre; Vilnius Lithuania
3. Department of Analytical and Organic Chemistry; Faculty of Chemistry and Chemical Technology; Moldova State University; Chisinau Republic of Moldova
4. Department of Zoology; Stockholm University; SE-106 91 Stockholm Sweden