@article{Kovalchuk:2016Q3,
  author = "Kovalchuk, Nataliia",
  title = "{Measurement of the cross-section ratio sigma(psi(2S))/sigma(J/psi(1S)) in deep inelastic exclusive ep scattering at HERA}",
  doi = "10.22323/1.265.0172",
  journal = "PoS",
  year = 2016,
  volume = "DIS2016",
  pages = "172"
}