Bulent Kose, Y.; Altintas, A.; Tugay, O.; Uysal, T.; Demirci, B.; Ertugrul, K.; Husnu Can Baser, K. Composition of the Essential Oils of Centaurea Sericeae Wagenitz and Centaurea Ensiformis P.H. Davis from Turkey. ajc 2010, 22, 7159-7163.