@misc{indiciae400fd02a8661,
  title = {Tetrahedral chalcogenide clusters and open frameworks.},
  author = {Xianhui Bu and Nanfeng Zheng and Pingyun Feng},
  year = {2004},
  doi = {10.1002/chem.200306041},
  url = {https://pubmed.ncbi.nlm.nih.gov/15252781/},
  note = {Source identifier: 15252781}
}