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Hung-Liang Lai; Marco Guzzi; Joey Huston; Zhao Li; Pavel M. Nadolsky; Jon Pumplin; C.-P. Yuan (2010). “New parton distributions for collider physics”. 《Physical Review D》 82 (7): 074024. arXiv:1007.2241. doi:10.1103/PhysRevD.82.074024.
A. D. Martin; A. G. Roberts; W. J. Stirling; R. S. Thorne (2005). “Parton distributions incorporating QED contributions”. 《European Physical Journal C》 39 (2): 155–161. arXiv:hep-ph/0411040. doi:10.1140/epjc/s2004-02088-7.