references about R packages

[HHH]

Hi!

I'm not sure if it is the correct place to ask this question, but I don't know where to search for help otherwise.
I used R and a few models to analyse my results for my master paper.
However, I'm not really used to use R.... So, I need to have a reference for the R-model I used, however I found this method with search on the internet and not from a specific article.
I used the polr-function from the MASS-package en the Brant test to check assumptions.
How can I find references for these?

Thanks in advance.

[andresrcs]

Check the "References" section from the function's documentation.

https://www.rdocumentation.org/packages/MASS/versions/7.3-52/topics/polr

[HHH]

Well I can't get access to these articles with my institutional login... Is it reliable to just use these references?

[andresrcs]

If it is for a paper I would check the references myself to be sure.

References
Agresti, A. (2002) Categorical Data. Second edition. Wiley.

Venables, W. N. and Ripley, B. D. (2002) Modern Applied Statistics with S. Fourth edition. Springer.

[jrkrideau]

citation("packagename")

Example
citation("lubridate")