deletions | additions       diff --git a/bibliography/biblio.bib b/bibliography/biblio.bib  index 90f51a2..2875f6d 100644  --- a/bibliography/biblio.bib  +++ b/bibliography/biblio.bib 
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title = {{Imaging of tumor angiogenesis in rat brains in vivo by photoacoustic tomography}},  journal = {Appl. Opt.},  }  @article{Hoelen_1999,  doi = {10.1121/1.427087},  url = {http://dx.doi.org/10.1121/1.427087},  year = {1999},  publisher = {Acoustical Society of America ({ASA})},  volume = {106},  number = {2},  pages = {695},  author = {C. G. A. Hoelen and F. F. M. de Mul},  title = {{A new theoretical approach to photoacoustic signal generation}},  journal = {The Journal of the Acoustical Society of America},  }