To cite multiwave in publications use:

  Achard S, Gannaz I (2019). “Wavelet-Based and Fourier-Based
  Multivariate Whittle Estimation: multiwave.” _Journal of Statistical
  Software_, *89*(6), 1-31. doi:10.18637/jss.v089.i06
  <https://doi.org/10.18637/jss.v089.i06>.

A BibTeX entry for LaTeX users is

  @Article{,
    title = {Wavelet-Based and {F}ourier-Based Multivariate {W}hittle Estimation: {multiwave}},
    author = {Sophie Achard and Ir{\`e}ne Gannaz},
    journal = {Journal of Statistical Software},
    year = {2019},
    volume = {89},
    number = {6},
    pages = {1--31},
    doi = {10.18637/jss.v089.i06},
  }