@misc{indiciaed2c7545f3bab,
  title = {The principles and problems of evaluation.},
  author = {B L Blackwell and W M Bolman},
  year = {1977},
  doi = {10.1007/bf01410887},
  url = {https://pubmed.ncbi.nlm.nih.gov/408096/},
  note = {Source identifier: 408096}
}