K. Beck, The Agile Manifesto, 2001.

H. F. Cervone, Understanding Agile Project Management Methods using Scrum. Managing Digital Libraries: the view from 30,000 feet. OCLC systems & services, pp.18-22, 2010.
DOI : 10.1108/10650751111106528

R. G. Cooper, What's Next? Research Technology Management, pp.20-31, 2014.

M. Cohn, Agile estimating and planning, 2010.

M. Cohn, Succeeding with Agile: Software development using Scrum (Addison- Wesley Signature Series) Upper Saddle River, 2010.

M. Drury, K. Conboy, and K. Power, Obstacles to decision making in Agile software development teams, Journal of Systems and Software, vol.85, issue.6, pp.1239-1254, 2012.
DOI : 10.1016/j.jss.2012.01.058

D. Ezzy, Qualitative analysis: Practice and innovation, 2002.

R. Galen, SCRUM Product Ownership: Balancing Value from the Inside Out, 2013.

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

A. Ivarsson and H. Kniberg, Scaling Agile @ Spotify with Tribes, Squads, Chapters and Guilds from: https://dl, 2012.

H. Kniberg, Scrum and XP from the Trenches: How we do scrum, 2007.
DOI : 10.1109/agile.2008.34

H. Kniberg, How Spotify Builds Products, 2013.

M. K. Larusdottir, A. Cajander, G. Erlingsdottir, T. Lind, and J. Gulliksen, Challenges from Integrating Usability Activities in Scrum: Why Is Scrum so Fashionable?, Integrating User Centred Design in Agile Development, 2016.
DOI : 10.1080/10447318.2015.1065693

S. Misra, Agile software development practices: evolution, principles, and criticisms, International Journal of Quality & Reliability Management, vol.29, issue.9, pp.972-980, 2011.
DOI : 10.1109/52.991334

R. Pichler, Agile Product Management with Scrum: Creating Products that Customers Love (Addison-Wesley Signature Series), 2010.

M. Senapathi and A. Srinivasan, Understanding post-adoptive agile usage: An exploratory cross-case analysis, Journal of Systems and Software, vol.85, issue.6, pp.1255-1268, 2012.
DOI : 10.1016/j.jss.2012.02.025

. Spotify, Labels and artists, 2014.

K. Schwaber, SCRUM Development Process, Business Object Design and Implementation, pp.117-134, 1995.
DOI : 10.1007/978-1-4471-0947-1_11

K. Schwaber, Agile Project Management with Scrum, 2004.

D. E. Strode, B. Hope, S. L. Huff, and S. Link, Coordination in co-located agile software development projects, Journal of Systems and Software, vol.85, issue.6, pp.1222-1238, 2012.
DOI : 10.1016/j.jss.2012.02.017

URL : http://slink.foiks.org/Articles/JSS12.pdf

H. S. Sverrisdottir, H. T. Ingason, and H. I. Jonasson, The Role of the Product Owner in Scrum-comparison between Theory and Practices, Procedia - Social and Behavioral Sciences, vol.119, pp.257-267, 2014.
DOI : 10.1016/j.sbspro.2014.03.030

H. Takeuchi and I. Og-nonaka, The new new product development game, Harvard Business Review, vol.64, issue.1, pp.137-146, 1986.

R. K. Yin, Case study research: design and methods, 2009.