Hints, O., Killing, M., Männik, P., Nestor, V. 2006.
Frequency patterns of chitinozoans, scolecodonts, and conodonts in the upper Llandovery and lower Wenlock of the Paatsalu core, western Estonia.Proceedings of the Estonian Academy of Sciences. Geology55,
2,128-155.
Nestor, H., Nestor, V. 2002.
Upper Llandovery to middle Wenlock (Silurian) lithostratigraphy and chitinozoan biostratigraphy in southwestern Estonia and northermost Latvia.Proceedings of the Estonian Academy of Sciences. Geology51,
2,67-87.
Nestor, V. 1999.
Distribution of chitinozoans in the Llandovery of the Oslo region.Bolletino della Societa Paleontologica Italiana38,
2-3,227-238.