To cite package ‘oct4’ in publications use:

  King, H.W. and Klose, R.J. The pioneer factor OCT4 requires the
  chromatin remodeller BRG1 to support gene regulatory element function
  in mouse embryonic stem cells. eLife. 6:e22631. (2017).

A BibTeX entry for LaTeX users is

  @Article{,
    author = {{King} and Hamish W and {Klose} and Robert J},
    title = {The pioneer factor OCT4 requires the chromatin remodeller BRG1 to support gene regulatory element function in mouse embryonic stem cells},
    journal = {eLife},
    year = {2017},
    volume = {6},
    pages = {e22631},
    url = {https://doi.org/10.7554/eLife.22631},
  }