@article{rothenburg_bathurst_1989, 
  title={Analytical study of induced anisotropy in idealized granular materials}, 
  volume={39}, 
  DOI={10.1680/geot.1989.39.4.601}, 
  publisher={Thomas Telford Ltd.}, 
  author={Rothenburg and Bathurst}, 
  year={1989}
  }