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1) HUGS references (summary): https://www.jlab.org/education/hugs/references
2) EPJ-A topical issue: The 3D structure of the nucleonhttps://link.springer.com/journal/10050/topicalCollection/AC_628286e999d9a60c9a780398df15f93d
3) Diehl: Introduction to GPDs and TMDshttps://inspirehep.net/literature/1408303
4) Bacchetta et al.: Single spin asymmetries: the Trento conventions https://inspirehep.net/literature/660999
5) Collins: Light cone variables, rapidity and all that https://inspirehep.net/literature/443368
6) Fragmentation Functions: https://arxiv.org/pdf/1607.02521.pdf
7) Metz-Vossen: Parton fragmentation functionshttps://inspirehep.net/literature/1475000
8) Scimemi: A short review on recent developments in TMD factorization and implementation https://inspirehep.net/literature/1716549
9) COMPASS: (Boer-Mulders): https://wwwcompass.cern.ch/compass/publications/theses/2019_dpl_rudnicki.pdf
1910) FNAL E866/NuSea: D-Y in p+d, 2006: https://inspirehep.net/literature/725479
11) FNAL E866/NuSea: D-Y in p+p, 2008: https://inspirehep.net/literature/803693
1112) Sivers and Boer-Mulders observables from lattice QCD : https://arxiv.org/abs/1111.4249
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