<ref name="Bestmann_et_al_1997">{{cite journal |first1=H. J. |last1=Bestmann |first2=E. |last2=Übler |first3=B. |last3=Hölldobler |year=1997 |title=First biosynthetic studies on trail pheromones in ants |url= |journal=Angewandte Chemie. International Edition in English |publisher= |volume=36 |issue= |pages=395–397 |doi= }}</ref>