author = {Jil Klünder and Philipp Hohl and Masud Fazal-Baqaie and Stephan Krusche
	and Steffen Küpper and Oliver Linssen and Christian R. Prause},
  title = {HELENA Study: Reasons for Combining Agile and Traditional Software
	Development Approaches in German Companies},
  booktitle = {Proceedings of the 2nd HELENA Workshop @ 18th International Conference
	on Product-Focused Software Process Improvement, PROFES 2017},
  year = {2017},
  publisher = {Springer International Publishing}