@misc{indiciae44fad15f5ad5,
  title = {Spin-dependent forces in heavy-quark systems.},
  author = {SN Gupta and SF Radford and WW Repko},
  year = {1985},
  doi = {10.1103/physrevlett.55.3006},
  url = {https://pubmed.ncbi.nlm.nih.gov/10032299/},
  note = {Source identifier: 10032299}
}