To cite structToolbox in publications use:

  Lloyd, G., Jankevics, A., and Weber, R. 2020. struct: an
  R/Bioconductor-based framework for standardized metabolomics data
  analysis and beyond. Bioinformatics, 36(22-23), p.5551-5552.

A BibTeX entry for LaTeX users is

  @Article{,
    title = {struct: an R/Bioconductor-based framework for standardized metabolomics data analysis and beyond},
    author = {Gavin Rhys Lloyd and Andris Jankevics and Ralf Johannes Maria Weber},
    journal = {Bioinformatics},
    year = {2020},
    volume = {36},
    number = {22-23},
    pages = {5551-5552},
    url = {https://doi.org/10.1093/bioinformatics/btaa1031},
  }