@misc{indiciae81b8d12aace7,
  title = {Linear response of general composite systems to many coupled fields.},
  author = {M Milgrom},
  year = {1990},
  doi = {10.1103/physrevb.41.12484},
  url = {https://pubmed.ncbi.nlm.nih.gov/9993721/},
  note = {Source identifier: 9993721}
}