@article{TronickeTrauth2018,
  author    = {Jens Tronicke and Martin H. Trauth},
  title     = {Classroom-sized geophysical experiments},
  journal   = {European Journal of Physics},
  series    = {magnetic surveying using modern smartphone devices},
  volume    = {39},
  number    = {3},
  doi       = {10.1088/1361-6404/aaad5b},
  year      = {2018},
}