For citations:

Moloshnikov S.V., Linkevich V.V. Some notes on a variability of Bothriolepidids (Placodermi, Antiarchi): unusual specimen of Livnolepis Heckeri (Luksevics) from the famennian of Tver region, European Russia. Proceedings of higher educational establishments. Geology and Exploration. 2019;(4):5-10. (In Russ.) https://doi.org/10.32454/0016-7762-2019-4-5-10