To cite sicegar in publications use

Caglar M, Teufel A, Wilke C (2018). “Sicegar: R package for sigmoidal and double-sigmoidal curve fitting.” PeerJ, 6, e4251. doi:10.7717/peerj.4251.

Corresponding BibTeX entry:

  @Article{,
    title = {Sicegar: {R} package for sigmoidal and double-sigmoidal
      curve fitting},
    author = {M. Umut Caglar and Ashley I. Teufel and Claus O. Wilke},
    year = {2018},
    journal = {PeerJ},
    volume = {6},
    pages = {e4251},
    doi = {10.7717/peerj.4251},
  }