@inproceedings{ICDT-2018-MongoDB,
  author    = {Elena Botoeva and
               Diego Calvanese and
               Benjamin Cogrel and
               Guohui Xiao},
  title     = {Expressivity and Complexity of MongoDB Queries},
  booktitle = {Proc. of the 21st Int. Conf. on Database Theory (ICDT 2018)},
  pages     = {9:1--9:23},
  year      = {2018},
  webpdf = {https://www.doc.ic.ac.uk/~ebotoeva/papers/bccx-ICDT-18.pdf},
  prespdf = {https://www.doc.ic.ac.uk/~ebotoeva/presentations/bccx-ICDT-18-presentation.pdf},
  posterpdf = {https://www.doc.ic.ac.uk/~ebotoeva/presentations/bccx-ICDT-18-poster.pdf}
}