deletions | additions       diff --git a/bibliography/biblio.bib b/bibliography/biblio.bib  index 23ee5f1..7fbf6f9 100644  --- a/bibliography/biblio.bib  +++ b/bibliography/biblio.bib 
...
@article{sensitivity,  author = "Crane, P. C., C.  and Napier, P. J.", title = "Lecture 7. Sensitivity",  journal = "Synthesis Imaging in Radio Astronomy",  volume = "6", 
...
year = "1989"  }  @article{design2,  author = "Holdaway, M. A., A.  and Helfer, T. T.", title = "Lecture 27. Interferometric Array Design",  journal = "Synthesis Imaging in Radio Astronomy II",  volume = "180", 
...
DOI = "http://library.nrao.edu/public/memos/alma/memo199.pdf"  }  @article{cost6,  author = "Yun, M. S., S.  and Kogan, L", title = "ALMA Memo 199 - Cost-benefit Analysis of ALMA configurations"  year = "1999",  DOI = "http://library.nrao.edu/public/memos/alma/memo265.pdf"  }