To cite package tgcd in publications use:

Peng J, Dong ZB, Han FQ, 2016. tgcd: An R package for analyzing thermoluminescence glow curves. SoftwareX, 5: 112-120.

Corresponding BibTeX entry:

  @Article{,
    title = {tgcd: An R package for analyzing thermoluminescence glow
      curves},
    author = {Peng J and Dong ZB and Han FQ},
    journal = {SoftwareX},
    year = {2016},
    doi = {10.1016/j.softx.2016.06.001},
  }