@inproceedings{WATT:2010XZ, author = "WATT, Graeme", title = "{Parton distributions: Hera-Tevatron-LHC}", doi = "10.22323/1.102.0014", booktitle = "Proceedings of XXth Hadron Collider Physics Symposium {\textemdash} PoS(HCP2009)", year = 2010, volume = "102", pages = "014" }