See also

• Scikit-learn's official documentation of the linear_model.Ridge function: https://scikit-learn.org/stable/modules/generated/sklearn.linear_model.Ridge.html
• Ridge Regression, Columbia University: https://www.mailman.columbia.edu/research/population-health-methods/ridge-regression
• Multicollinearity and Other Regression Pitfalls, The Pennsylvania State University: https://newonlinecourses.science.psu.edu/stat501/node/343/