@misc{indiciae8b388b8bbcab,
  title = {Two-loop corrections to the Isgur-Wise function in QCD sum rules.},
  author = {M Neubert},
  year = {1993},
  doi = {10.1103/physrevd.47.4063},
  url = {https://pubmed.ncbi.nlm.nih.gov/10016033/},
  note = {Source identifier: 10016033}
}