@article{Wauters:4784,
      author        = "Wauters, Laurence and Dominique, Marie and Dammash, Ingolf
                       I.E and Meftah, Mustafa",
      title         = "{Evolution of periodicities with solar cycle for long-term
                       solar time series}",
      month         = "Nov",
      year          = "2019",
}