paper: add citation to Bertin (1996)

kbarbary · Sep 8, 2016 · 215f7c2 · 215f7c2
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diff --git a/paper/paper.bib b/paper/paper.bib
@@ -1,4 +1,4 @@
-@ARTICLE{bertin96a,
+@ARTICLE{bertin96,
    author = {{Bertin}, E. and {Arnouts}, S.},
    title = "{SExtractor: Software for source extraction.}",
    journal = {\aaps},
@@ -7,6 +7,7 @@ @ARTICLE{bertin96a
    month = jun,
    volume = 117,
    pages = {393-404},
+   doi = {10.1051/aas:1996164},
    adsurl = {http://adsabs.harvard.edu/abs/1996A\%26AS..117..393B},
    adsnote = {Provided by the SAO/NASA Astrophysics Data System}
 }

diff --git a/paper/paper.md b/paper/paper.md
@@ -12,12 +12,12 @@ bibliography: paper.bib
 
 # Summary
 
-Source Extractor [@sextractor] is a widely used command-line program for
-segmentation and analysis of astronomical images. It reads in FITS
-format files, performs a configurable series of tasks, including
-background estimation, source detection, deblending and a wide array
-of source measurements, and finally outputs a FITS format catalog
-file.
+Source Extractor [@bertin96; @sextractor] is a widely used
+command-line program for segmentation and analysis of astronomical
+images. It reads in FITS format files, performs a configurable series
+of tasks, including background estimation, source detection,
+deblending and a wide array of source measurements, and finally
+outputs a FITS format catalog file.
 
 While Source Extractor is highly useful, the fact that it can only be
 used as an executable -- reading input files, producing output files