@misc{indiciae510aa6931459,
  title = {Using multi-class queuing network to solve performance models of e-business sites.},
  author = {Xiao-ying Zheng and De-ren Chen},
  year = {2004},
  doi = {10.1007/bf02839309},
  url = {https://pubmed.ncbi.nlm.nih.gov/14663849/},
  note = {Source identifier: 14663849}
}