@misc{indiciae5541c2ae9aaf,
  title = {Measuring change: mixed Markov models for ordinal panel data.},
  author = {U Böckenholt},
  year = {1999},
  doi = {10.1348/000711099159008},
  url = {https://pubmed.ncbi.nlm.nih.gov/10380318/},
  note = {Source identifier: 10380318}
}