1. Dianne K. Daeg de Mott
https://psychology.jrank.org/pages/285/Guilt.html
2. I forgive myself, now I can study: How self-forgiveness for procrastinating can reduce future procrastination
Michael J.A.WohlTimothy A.PychylShannon H.Bennett
https://doi.org/10.1016/j.paid.2010.01.029