To cite RcppCNPy in publications use:

Eddelbuettel D, Wu W (2016). “RcppCNPy: Read-Write Support for NumPy Files in R.” Journal of Open Source Software, 1. http://dx.doi.org/10.21105/joss.00055.

Corresponding BibTeX entry:

  @Article{,
    title = {{RcppCNPy}: Read-Write Support for NumPy Files in R},
    author = {Dirk Eddelbuettel and Wush Wu},
    journal = {Journal of Open Source Software},
    publisher = {The Open Journal},
    year = {2016},
    volume = {1},
    issue = {5},
    month = {September},
    url = {http://dx.doi.org/10.21105/joss.00055},
  }