Hi Pakillo,
I just found grateful and it's is great!..
I would like to suggest you if you can include, after the doi address of the citation, a "date access" information.
In some journals when I have cited some R packages they ask to me to include the date when I have access to the package in square brackets.
something like:
R Core Team (2013). R: A language and environment for statistical
computing. R Foundation for Statistical Computing, Vienna, Austria.
URL http://www.R-project.org/. [Accessed on August 2017]