@misc{indiciae84c8e6d4dee4,
  title = {Coupled multifield linear response of two-phase composites: Exact universal relations.},
  author = {M Milgrom and S Shtrikman},
  year = {1989},
  doi = {10.1103/physrevlett.62.1979},
  url = {https://pubmed.ncbi.nlm.nih.gov/10039825/},
  note = {Source identifier: 10039825}
}