To cite package ‘crochet’ in publications use:

Grueneberg A (2020). crochet: Implementation Helper for '[' and '[<-' of Custom Matrix-Like Types. R package version 2.3.0.9000, https://github.com/agrueneberg/crochet.

Corresponding BibTeX entry:

  @Manual{,
    title = {crochet: Implementation Helper for '[' and '[<-' of Custom
      Matrix-Like Types},
    author = {Alexander Grueneberg},
    year = {2020},
    note = {R package version 2.3.0.9000},
    url = {https://github.com/agrueneberg/crochet},
  }