Hayrapetyan, F. A. “ZONAL DIVISION OF EOCENE DEPOSITS BY SMALL FORAMINIFERA FROM BOREHOLE MATERIALS OF «LANDJAR 2»”. Proceedings of the YSU C: Geological and Geographical Sciences 43, no. 2 (219) (July 13, 2009): 28–36. Accessed September 20, 2024. https://pub.ysu.am/index.php/proceedings-geol-geogr/article/view/vol43_no2_2009_pp028-036.