Late Albian-Coniacian planktic foraminifera and biostratigraphy of the northeastern CaucasusDOI: info:10.1006/cres.2001.0295v. 22No. 6ACADEMIC PRESS LTD ELSEVIER SCIENCE LTD719–734
Tur, N. A., Smirnov, J. P., and Huber, Brian T. 2001. "Late Albian-Coniacian planktic foraminifera and biostratigraphy of the northeastern Caucasus." Cretaceous Research, 22, (6) 719–734. https://doi.org/10.1006/cres.2001.0295.