@article{Ovchinnikova2024observation, author={Ovchinnikova, N.E. and Bogod, V.. and Lebedev, M.K.}, title={Observation at radio frequencies of the hydroxyl (OH) absorption line in filaments and prominences above active regions of the Sun}, journal={Solar-Terrestrial Physics}, publisher={INFRA-M Academic Publishing LLC.}, year={2024}, pages={18-24}, volume={10}, issue={3}, }