Gertsch, B., G. Keller, T. Adatte, Z. Berner, A. Kassab, AAAM Tantawy, A. El-Sabbagh, and D. Stüben. (2010) 2008. “Cenomanian–Turonian Transition in a Shallow Water Sequence of the Sinai, Egypt”. International Journal of Earth Sciences 99 (1): 165-82. doi:10.1007/s00531-008-0374-4.