ÜZEN, E. 1994. Questionnarie on current research on the biology of endangered plant species of the Mediterranean basin: Centaurea herrnannii F. Herrnann. ın IRONDO, IM., et aL. Current research on the biology of threatened plant species of the Mediterranean Basin and Macaronesia. Bocconea , vol.4 .

ÜZEN, E., (1994). Questionnarie on current research on the biology of endangered plant species of the Mediterranean basin: Centaurea herrnannii F. Herrnann. ın IRONDO, IM., et aL. Current research on the biology of threatened plant species of the Mediterranean Basin and Macaronesia. Bocconea , vol.4.

ÜZEN, Erdal. "Questionnarie on current research on the biology of endangered plant species of the Mediterranean basin: Centaurea herrnannii F. Herrnann. ın IRONDO, IM., et aL. Current research on the biology of threatened plant species of the Mediterranean Basin and Macaronesia," Bocconea , vol.4, 1994

ÜZEN, Erdal. "Questionnarie on current research on the biology of endangered plant species of the Mediterranean basin: Centaurea herrnannii F. Herrnann. ın IRONDO, IM., et aL. Current research on the biology of threatened plant species of the Mediterranean Basin and Macaronesia." Bocconea , vol.4, 1994

ÜZEN, E. (1994) . "Questionnarie on current research on the biology of endangered plant species of the Mediterranean basin: Centaurea herrnannii F. Herrnann. ın IRONDO, IM., et aL. Current research on the biology of threatened plant species of the Mediterranean Basin and Macaronesia." Bocconea , vol.4.

@article{article, author={Erdal ÜZEN}, title={Questionnarie on current research on the biology of endangered plant species of the Mediterranean basin: Centaurea herrnannii F. Herrnann. ın IRONDO, IM., et aL. Current research on the biology of threatened plant species of the Mediterranean Basin and Macaronesia}, journal={Bocconea}, year=1994}