@misc{indiciae310fdd777d15,
  title = {Variables aggregation in a time discrete linear model.},
  author = {L Sanz and R Bravo de la Parra},
  year = {1999},
  doi = {10.1016/s0025-5564(98)10079-2},
  url = {https://pubmed.ncbi.nlm.nih.gov/10194926/},
  note = {Source identifier: 10194926}
}