To cite package ‘SPEM’ in publications use:

  Developer XY, Developer JED, Supervisor CN (2013). _SPEM: S-system
  parameter estimation method_. R package version 1.45.0,
  <https://bioconductor.org/packages/SPEM>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {SPEM: S-system parameter estimation method},
    author = {Xinyi YANG Developer and Jennifer E. DENT Developer and Christine NARDINI Supervisor},
    year = {2013},
    note = {R package version 1.45.0},
    url = {https://bioconductor.org/packages/SPEM},
  }

ATTENTION: This citation information has been auto-generated from the
package DESCRIPTION file and may need manual editing, see
‘help("citation")’.