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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) Metz-Vossen: Parton fragmentation functionshttps://inspirehep.net/literature/1475000 
7) Scimemi: A short review on recent developments in TMD factorization and implementation https://inspirehep.net/literature/1716549
8) COMPASS: (Boer-Mulders): https://wwwcompass.cern.ch/compass/publications/theses/2019_dpl_rudnicki.pdf
9) FNAL E866/NuSea: D-Y in p+d, 2006: https://inspirehep.net/literature/725479
10) FNAL E866/NuSea: D-Y in p+p, 2008: https://inspirehep.net/literature/803693
11) https://arxiv.org/abs/1111.4249 : Sivers and Boer-Mulders observables from lattice QCD

Boer-Mulders references:

1) https://arxiv.org/abs/2004.02117 : New study of the Boer-Mulders function: Implications for the quark and hadron transverse momenta (2020)
2) https://arxiv.org/abs/0803.1692 : Extracting Boer-Mulders functions from p+D Drell-Yan processes (2008)

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