H. Alahyari, R. B. Svensson, and T. Gorschek, A study of value in agile software development organizations, Journal of Systems and Software, vol.125, pp.271-288, 2017.
DOI : 10.1016/j.jss.2016.12.007

S. Beecham, N. Baddoo, T. Hall, H. Robinson, and H. Sharp, Motivation in Software Engineering: A systematic literature review, Information and Software Technology, vol.50, issue.9-10, pp.860-878, 2008.
DOI : 10.1016/j.infsof.2007.09.004

URL : http://uhra.herts.ac.uk/bitstream/2299/989/1/S70.pdf

T. Dingsøyr and C. Lassenius, Emerging themes in agile software development: Introduction to the special section on continuous value delivery, Information and Software Technology, vol.77, pp.56-60, 2016.
DOI : 10.1016/j.infsof.2016.04.018

A. C. Franca, T. B. Gouveia, P. C. Santos, C. A. Santana, and F. Q. Da-silva, Motivation in software engineering: a systematic review update, 15th Annual Conference on Evaluation & Assessment in Software Engineering (EASE 2011), pp.154-163, 2011.
DOI : 10.1049/ic.2011.0019

J. Gillain, I. Jureta, and S. Faulkner, Planning Optimal Agile Releases via Requirements Optimization, 2016 IEEE 24th International Requirements Engineering Conference Workshops (REW), pp.10-16, 2016.
DOI : 10.1109/REW.2016.016

D. Graeber, Toward an anthropological theory of value: The false coin of our own dreams, 2001.
DOI : 10.1057/9780312299064

J. E. Hannay, H. C. Benestad, and K. Strand, Benefit Points: The Best Part of the Story, IEEE Software, vol.34, issue.3, pp.73-85, 2017.
DOI : 10.1109/MS.2017.66

M. Hassenzahl, M. Schöbel, and T. Trautmann, How motivational orientation influences the evaluation and choice of hedonic and pragmatic interactive products: The role of regulatory focus, Interacting with Computers, vol.80, issue.4-5, pp.4-5, 2008.
DOI : 10.1037/0022-3514.80.2.325

J. Highsmith, Agile project management: creating innovative products, 2009.

R. Hoda, J. Noble, and S. Marshall, The impact of inadequate customer collaboration on self-organizing Agile teams, Information and Software Technology, vol.53, issue.5, pp.521-534, 2011.
DOI : 10.1016/j.infsof.2010.10.009

, Ergonomics of human-system interaction. Part 210: Humancentered design for interactive systems, 2010.

M. Khurum, T. Gorschek, and M. Wilson, The software value map - an exhaustive collection of value aspects for the development of software intensive products, Journal of Software: Evolution and Process, vol.82, issue.7, pp.25-711, 2013.
DOI : 10.1016/j.jss.2009.06.048

K. Kuusinen, Task Allocation Between UX Specialists and Developers in Agile Software Development Projects, Human-Computer Interaction, pp.27-44, 2015.
DOI : 10.1007/978-3-319-22698-9_3

URL : https://hal.archives-ouvertes.fr/hal-01609397

K. Kuusinen, BoB: A Framework for Organizing Within-Iteration UX Work in Agile Development, Integrating User-Centred Design in Agile Development, pp.205-224, 2016.
DOI : 10.1016/j.foodqual.2004.05.012

K. Kuusinen, Are Software Developers Just Users of Development Tools? Assessing Developer Experience of a Graphical User Interface Designer, International Conference on Human-Centred Software Engineering, pp.215-233, 2016.
DOI : 10.1145/982372.982403

URL : https://hal.archives-ouvertes.fr/hal-01647699

K. Kuusinen and T. Mikkonen, Designing User Experience for Mobile Apps: Long-Term Product Owner Perspective, 2013 20th Asia-Pacific Software Engineering Conference (APSEC), pp.535-540, 2013.
DOI : 10.1109/APSEC.2013.77

K. Kuusinen, T. Mikkonen, and S. Pakarinen, Agile user experience development in a large software organization: good expertise but limited impact. Human-Centered Software Engineering, pp.94-111, 2012.
DOI : 10.1007/978-3-642-34347-6_6

URL : https://hal.archives-ouvertes.fr/hal-01556818

K. Kuusinen, H. Petrie, F. Fagerholm, and T. Mikkonen, Flow, Intrinsic Motivation, and Developer Experience in Software Engineering, International Conference on Agile Software Development, pp.104-117, 2016.
DOI : 10.1080/02701367.1989.10607413

K. Kuusinen and K. Väänänen-vainio-mattila, How to make agile UX work more efficient, Proceedings of the 7th Nordic Conference on Human-Computer Interaction Making Sense Through Design, NordiCHI '12, pp.139-148, 2012.
DOI : 10.1145/2399016.2399037

, ACM

K. Kuusinen, H. Väätäjä, T. Mikkonen, and K. Väänänen, Towards Understanding How Agile Teams Predict User Experience, Integrating User-Centred Design in Agile Development, pp.163-189, 2016.
DOI : 10.1145/2838739.2838761

K. R. Lakhani and R. G. Wolf, Why Hackers Do What They Do: Understanding Motivation and Effort in Free/Open Source Software Projects, SSRN Electronic Journal, pp.4425-4428, 2003.
DOI : 10.2139/ssrn.443040

M. Lárusdóttir, Å. Cajander, and J. Gulliksen, The Big Picture of UX is Missing in Scrum Projects, pp.42-48, 2012.

M. Paasivaara, O. Väättänen, M. Hallikainen, and C. Lassenius, Supporting a Large-Scale Lean and Agile Transformation by Defining Common Values, International Conference on Agile Software Development, pp.73-82, 2014.
DOI : 10.1007/978-3-319-14358-3_7

R. Pressman, Z. Racheva, M. Daneva, K. Sikkel, and L. Buglione, Software engineering -A practitioner's approach McGraw-Hill 25 Business value is not only dollars?results from case study research on agile software projects, International Conference on Product Focused Software Process Improvement, pp.131-145, 2010.