@article{SeyfriedReith2019,
  author    = {Markus Seyfried and Florian Reith},
  title     = {Mixed methods for research into higher education},
  journal   = {Theory and method in higher education research},
  series    = {Solving the problem of institutionalized introspection?},
  volume    = {5},
  pages     = {111 -- 127},
  doi       = {10.1108/S2056-375220190000005008},
  year      = {2019},
}