@article{ramage2020mapping,
 author = {Dan Ramage and Christopher D. Manning and Dan A. McFarland},
 journal = {ArXiv preprint arXiv:2004.01291},
 title = {Mapping three decades of intellectual change in academia},
 url = {https://nlp.stanford.edu/pubs/ramage2020mapping.pdf},
 year = {2020}
}