bug 1362: added publication details of Hessels:09

doc/papers/references.bib

@@ -1377,7 +1377,9 @@
     author	= {J. Hessels and B. Stappers and J. van Leeuwen},
     booktitle	= {The Low-Frequency Radio Universe},
     series	= {ASP Conference Series},
-    note	= {To appear. http://arxiv.org/pdf/0903.1447}
+    volume      = {407},
+    pages       = {318--322},
+    year        = {1999}
 }
 
 @inproceedings