To cite package ‘PupilPre’ in publications use: Kyröläinen A, Porretta V, van Rij J, Järvikivi J (2019). “PupilPre: Tools for Preprocessing Pupil Size Data.” Version 0.6.2, updated 2020-03-08, . A BibTeX entry for LaTeX users is @Misc{, title = {{PupilPre}: Tools for Preprocessing Pupil Size Data}, author = {Aki-Juhani Kyröläinen and Vincent Porretta and Jacolien {van Rij} and Juhani Järvikivi}, url = {https://CRAN.R-project.org/package=PupilPre}, year = {2019}, note = {Version 0.6.2, updated 2020-03-08}, }