@misc{indiciaefb2316a5aeb4,
  title = {Modelling non-demanders in choice experiments.},
  author = {Mandy Ryan and Diane Skåtun},
  year = {2004},
  doi = {10.1002/hec.821},
  url = {https://pubmed.ncbi.nlm.nih.gov/15067675/},
  note = {Source identifier: 15067675}
}