To cite package ‘yasp’ in publications use:

Kalinowski T (2019). yasp: String Functions for Compact R Code. R package version 0.2.0, https://github.com/t-kalinowski/yasp.

Corresponding BibTeX entry:

  @Manual{,
    title = {yasp: String Functions for Compact R Code},
    author = {Tomasz Kalinowski},
    year = {2019},
    note = {R package version 0.2.0},
    url = {https://github.com/t-kalinowski/yasp},
  }