@article{semerikov2019three,
  title={Three-dimensional Paul trap with high secular frequency for compact optical clock},
  author={Semerikov, IA and Zalivako, IV and Borisenko, AS and Aksenov, MD and Vishnyakov, PA and Sidorov, PL and Kolachevskii, NN and Khabarova, K Yu},
  journal={Bulletin of the Lebedev Physics Institute},
  volume={46},
  number={9},
  pages={297--300},
  year={2019},
  publisher={Springer}
}