@article{clusteringstudentsopenendedquestionnaire,
  title = {Clustering students' open-ended questionnaire answers},
  author = {Hämäläinen Wilhelmiina and Joy Mike and Berger Florian and Huttunen Sami},
  year = {2018},
  eprint = {1809.07306},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1809.07306v1},
}