SEVEROĞLU, Z. Et Al. 2006. Contributions of the flora Ballıkayalar National Park (Gebze, Kocaeli, Turkey). IV Balkan Botanical Congress , (Sofya, Bulgaria), 427-430.

SEVEROĞLU, Z., YAŞAR, Ü., Keskin, M., & SERİN, M., (2006). Contributions of the flora Ballıkayalar National Park (Gebze, Kocaeli, Turkey) . IV Balkan Botanical Congress (pp.427-430). Sofya, Bulgaria

SEVEROĞLU, ZEKİ Et Al. "Contributions of the flora Ballıkayalar National Park (Gebze, Kocaeli, Turkey)," IV Balkan Botanical Congress, Sofya, Bulgaria, 2006

SEVEROĞLU, ZEKİ Et Al. "Contributions of the flora Ballıkayalar National Park (Gebze, Kocaeli, Turkey)." IV Balkan Botanical Congress , Sofya, Bulgaria, pp.427-430, 2006

SEVEROĞLU, Z. Et Al. (2006) . "Contributions of the flora Ballıkayalar National Park (Gebze, Kocaeli, Turkey)." IV Balkan Botanical Congress , Sofya, Bulgaria, pp.427-430.

@conferencepaper{conferencepaper, author={ZEKİ SEVEROĞLU Et Al. }, title={Contributions of the flora Ballıkayalar National Park (Gebze, Kocaeli, Turkey)}, congress name={IV Balkan Botanical Congress}, city={Sofya}, country={Bulgaria}, year={2006}, pages={427-430} }