@inproceedings{Liu:2001GP,
  author = "Liu, Xiang",
  title = "{Search for leptoquarks and contact interactions at HERA }",
  doi = "10.22323/1.007.0151",
  booktitle = "Proceedings of International Europhysics Conference on High Energy Physics {\textemdash} PoS(hep2001)",
  year = 2001,
  volume = "007",
  pages = "151"
}