Corrections from @eteq and @hamogu

Author: migueldvb

tutorials/UVES/UVES.ipynb

@@ -29,7 +29,8 @@
       "This tutorial follows my real live data analysis of MN Lup and the code developed\n",
       "below is taken (with only minor modifications) from the code that I used to\n",
       "actually prepare the publication. The plots that will be developed below\n",
-      "appear in very similar form in the article published in ApJ.\n",
+      "appear in very similar form in the article published in\n",
+      "[ApJ, Volume 771, Issue 1, article id. 70, 12 pp](http://adsabs.harvard.edu/abs/2013ApJ...771...70G).\n",
       "\n",
       "The examples below depend on each other and the plots in the last section make\n",
       "use of things calculated in the earlier sections. Thus, if you need to restart\n",
@@ -141,7 +142,7 @@
      "cell_type": "markdown",
      "metadata": {},
      "source": [
-      "The previous astropy tutorial already covered\n",
+      "A previous astropy tutorial already covered\n",
       "[handling FITS files](../FITS-header.html) and WCS transformations, so the explanation here\n",
       "is only very brief. Check the [astropy documentation](http://docs.astropy.org)\n",
       "or the other two tutorials for more details:"
@@ -1472,4 +1473,4 @@
    "metadata": {}
   }
  ]
-}
+}