To cite package ‘rgtmx’ in publications use:

Abashin R (2022). rgtmx: Manage GTmetrix Tests in R. R package version 0.1.4.9000, https://github.com/romanabashin/rgtmx.

Corresponding BibTeX entry:

  @Manual{,
    title = {rgtmx: Manage GTmetrix Tests in R},
    author = {Roman A. Abashin},
    year = {2022},
    note = {R package version 0.1.4.9000},
    url = {https://github.com/romanabashin/rgtmx},
  }