@inproceedings {5021,
	title = {Choosing Math Features for BM25 Ranking With Tangent-L},
	booktitle = {ACM Symposium on Document Engineering (DocEng)},
	year = {2018},
	doi = {10.1145/3209280.3209527},
	author = {Dallas J. Fraser and Andrew Kane and Frank Tompa}
}
