@article{yang2015-a9f30bfe,
  author = {Yang, Nan},
  title  = {{Retail Grocery Evolution: What Can We Learn From Store Counts Data?}},
  year   = {2015},
  doi    = {10.2139/ssrn.2631502},
  url    = {https://doi.org/10.2139/ssrn.2631502}
}