The spqn package is described in:

Wang Y, Hicks SC, Hansen KD (2020). “Co-expression analysis is biased by a mean-correlation relationship.” bioRxiv, 2020.02.13.944777. doi:10.1101/2020.02.13.944777.

Corresponding BibTeX entry:

  @Article{spqnPreprint,
    title = {{Co-expression analysis is biased by a mean-correlation
      relationship}},
    author = {Yi Wang and Stephanie C. Hicks and Kasper D. Hansen},
    year = {2020},
    journal = {bioRxiv},
    pages = {2020.02.13.944777},
    doi = {10.1101/2020.02.13.944777},
  }