@inproceedings{evaluatingnaturallanguageunderstanding,
  title = {Evaluating Natural Language Understanding Services for Conversational Question Answering Systems},
  author = {Daniel Braun and Hern and Adrian ez Mendez and Florian Matthes and Manfred Langen},
  year = {2017},
  booktitle = {WS 2017 8},
  url = {https://aclanthology.org/W17-5522},
}