@misc{indiciaef6af7b442155,
  title = {Quantum superposition of macroscopic persistent-current states.},
  author = {C H van der Wal and A C ter Haar and F K Wilhelm and R N Schouten and C J Harmans and T P Orlando and S Lloyd and J E Mooij},
  year = {2000},
  doi = {10.1126/science.290.5492.773},
  url = {https://pubmed.ncbi.nlm.nih.gov/11052934/},
  note = {Source identifier: 11052934}
}