To cite package ‘covBM’ in publications use:

Stirrup O (2015). covBM: Brownian Motion Processes for 'nlme'-Models. R package version 0.1.0, https://github.com/ostirrup/covbm.

Corresponding BibTeX entry:

  @Manual{,
    title = {covBM: Brownian Motion Processes for 'nlme'-Models},
    author = {Oliver Stirrup},
    year = {2015},
    note = {R package version 0.1.0},
    url = {https://github.com/ostirrup/covbm},
  }