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arxiv ref:
1603.08906
Title:
Recommendations for PDF usage in LHC predictions
Authors:
A. Accardi, S. Alekhin, J. Bluemlein, M.V. Garzelli, K. Lipka, W. Melnitchouk, S. Moch, R. Placakyte, J.F. Owens, E. Reya, N. Sato, A. Vogt, O. Zenaiev