@inproceedings{509,
  author = {Wei Zhong and Xinyu Zhang and Ji Xin and Richard Zanibbi and Jimmy Lin},
  title = {Approach Zero and Anserini at the CLEF-2021 ARQMath Track: Applying Substructure Search and BM25 on Operator Tree Path Tokens},
  year = {2021},
  journal = {Approach Zero and Anserini at the CLEF-2021 ARQMath Track: Applying Substructure Search and BM25 on Operator Tree Path Tokens},
  url = {http://ceur-ws.org/Vol-2936/paper-09.pdf},
}