To cite bigmemory in publications use:

  Michael J. Kane, John Emerson, Stephen Weston (2013). Scalable
  Strategies for Computing with Massive Data. Journal of Statistical
  Software, 55(14), 1-19. URL
  https://www.jstatsoft.org/article/view/v055i14

A BibTeX entry for LaTeX users is

  @Article{,
    title = {Scalable Strategies for Computing with Massive Data},
    author = {Michael J. Kane and John W. Emerson and Stephen Weston},
    journal = {Journal of Statistical Software},
    year = {2013},
    volume = {55},
    number = {14},
    pages = {1--19},
    url = {https://www.jstatsoft.org/article/view/v055i14},
  }