deletions | additions       diff --git a/bibliography/biblio.bib b/bibliography/biblio.bib  index 0e96697..5a1ea6d 100644  --- a/bibliography/biblio.bib  +++ b/bibliography/biblio.bib 
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pages = {209-218},  }  @inproceedings{Liu_2012,  doi = {10.1117/12.918325},  url = {http://dx.doi.org/10.1117/12.918325}, 
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title = {{The study on infrared small target tracking technology under complex background}},  }  @incollection{2007,  doi = {10.1117/3.764682.p109}, url = {http://dx.doi.org/10.1117/3.764682.p109}, year = {2007}, 2007,  month = {aug}, publisher = {{SPIE}-Intl Soc Optical Eng}, pages = {109--109}, title = {{Small {Small  Target Visibility}}, Visibility},  booktitle = {Field Guide to Illumination}, Illumination}  }