Sutter, Matthias Max Planck Institute for Research on Collective Goods, Max Planck Society;
https://doi.org/10.1016/j.econlet.2020.109116 (Any fulltext)
Sutter, C., Rosenberger, W., & Sutter, M. (2020). Nudging with your child's education. A field experiment on collecting municipal dues when enforcement is scant. Economics Letters, 191: 109116.