Do non-free LCD codes over finite commutative Frobenius rings exist?

Sanjit Bhowmick, Alexandre Fotue Tabue, Edgar Martínez-Moro, Ramakrishna Bandi, Satya Bagchi. Do non-free LCD codes over finite commutative Frobenius rings exist?. Des. Codes Cryptography, 88(5):825-840, 2020. [doi]

@article{BhowmickTMBB20,
  title = {Do non-free LCD codes over finite commutative Frobenius rings exist?},
  author = {Sanjit Bhowmick and Alexandre Fotue Tabue and Edgar Martínez-Moro and Ramakrishna Bandi and Satya Bagchi},
  year = {2020},
  doi = {10.1007/s10623-019-00713-x},
  url = {https://doi.org/10.1007/s10623-019-00713-x},
  researchr = {https://researchr.org/publication/BhowmickTMBB20},
  cites = {0},
  citedby = {0},
  journal = {Des. Codes Cryptography},
  volume = {88},
  number = {5},
  pages = {825-840},
}