deletions | additions       diff --git a/bibliography/biblio.bib b/bibliography/biblio.bib  index 9b7a3e6..f246622 100644  --- a/bibliography/biblio.bib  +++ b/bibliography/biblio.bib 
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journal = {Unpublished manuscript. URL people. csail. mit. edu/jrennie/writing/convexLR. pdf},  year = {2005},  }  @article{Hoerl_1970,  doi = {10.1080/00401706.1970.10488635},  url = {http://dx.doi.org/10.1080/00401706.1970.10488635},  year = {1970},  month = {feb},  publisher = {Informa {UK} Limited},  volume = {12},  number = {1},  pages = {69--82},  author = {Arthur E. Hoerl and Robert W. Kennard},  title = {{Ridge Regression: Applications to Nonorthogonal Problems}},  journal = {Technometrics},  }