Thieler, Anita M., Roland Fried, and Jonathan Rathjens. “RobPer: An R Package to Calculate Periodograms for Light Curves Based on Robust Regression”. Journal of Statistical Software 69, no. 9 (March 27, 2016): 1–37. Accessed April 25, 2024. https://www.jstatsoft.org/index.php/jss/article/view/v069i09.