@article{coppock_hill_vavreck_2020,
  author = {Coppock, Alexander and Hill, Seth J. and Vavreck, Lynn},
  title = {{The Small Effects of Political Advertising are Small Regardless of Context, Message, Sender, or Receiver: Evidence from 59 Real-time Randomized Experiments}},
  journal = {Science Advances},
  year = {2020},
  volume = {6},
  number = {36},
  pages = {1--6},
  doi = {10.1126/sciadv.abc4046}
}