Sirel, E. Et Al. 2013. Systematics and biostratigraphy of Oligocene (Rupelian-Early Chattian) foraminifera from lagoonal-very shallow water limestone in the eastern Sivas Basin (central Turkey). GEOLOGIA CROATICA , vol.66, no.2 , 83-109.

Sirel, E., ÖZGEN ERDEM, N., & KANGAL, Ö., (2013). Systematics and biostratigraphy of Oligocene (Rupelian-Early Chattian) foraminifera from lagoonal-very shallow water limestone in the eastern Sivas Basin (central Turkey). GEOLOGIA CROATICA , vol.66, no.2, 83-109.

Sirel, Ercument, NAZİRE ÖZGEN ERDEM, And ÖZGEN KANGAL. "Systematics and biostratigraphy of Oligocene (Rupelian-Early Chattian) foraminifera from lagoonal-very shallow water limestone in the eastern Sivas Basin (central Turkey)," GEOLOGIA CROATICA , vol.66, no.2, 83-109, 2013

Sirel, Ercument Et Al. "Systematics and biostratigraphy of Oligocene (Rupelian-Early Chattian) foraminifera from lagoonal-very shallow water limestone in the eastern Sivas Basin (central Turkey)." GEOLOGIA CROATICA , vol.66, no.2, pp.83-109, 2013

Sirel, E. ÖZGEN ERDEM, N. And KANGAL, Ö. (2013) . "Systematics and biostratigraphy of Oligocene (Rupelian-Early Chattian) foraminifera from lagoonal-very shallow water limestone in the eastern Sivas Basin (central Turkey)." GEOLOGIA CROATICA , vol.66, no.2, pp.83-109.

@article{article, author={Ercument Sirel Et Al. }, title={Systematics and biostratigraphy of Oligocene (Rupelian-Early Chattian) foraminifera from lagoonal-very shallow water limestone in the eastern Sivas Basin (central Turkey)}, journal={GEOLOGIA CROATICA}, year=2013, pages={83-109} }