@misc{spiegler2018leadership,
  title={Leadership Gap in Agile Teams: How Teams and Scrum Masters Mature},
  author={Simone V. Spiegler and Christoph Heinecke and Stefan Wagner},
  year={2018},
  eprint={1812.07867},
  archivePrefix={arXiv},
  primaryClass={cs.SE},
  doi={10.1007/978-3-030-19034-7_3},
  url={https://arxiv.org/abs/1812.07867}
}