@misc{indiciaeae8acd360724,
  title = {FREX: a query interface for biological processes with hierarchical and recursive structures.},
  author = {Ken Ichiro Fukuda and Yuki Yamagata and Toshihisa Takagi},
  year = {2004},
  url = {https://pubmed.ncbi.nlm.nih.gov/15089754/},
  note = {Source identifier: 15089754}
}