@article{Chen91-0,
  title = {Optimizing Multidatabase Queries by Query Transformation},
  author = {Arbee L. P. Chen},
  year = {1991},
  url = {http://www.iis.sinica.edu.tw/page/jise/1991/199106_08.html},
  tags = {optimization, transformation},
  researchr = {https://researchr.org/publication/Chen91-0},
  cites = {0},
  citedby = {0},
  journal = {J. Inf. Sci. Eng.},
  volume = {7},
  number = {2},
  pages = {279-296},
}