diff --git a/ihm/help/reference b/ihm/help/reference
index 9f16f39..d44fa92 100644
--- a/ihm/help/reference
+++ b/ihm/help/reference
@@ -5,6 +5,6 @@ Some resources about coordinates transformation :
 	<li>M.A. Hapgood, (1997) "Corrigendum to Space Physics Coordinate Transformations: A User Guide", Planet. Space Sci. 45, 1047.</li>
 	<li> References for Coordinate Transformations <a href="http://www.mssl.ucl.ac.uk/grid/iau/extra/local_copy/SP_coords/refs.htm" target="_blank">http://www.mssl.ucl.ac.uk/grid/iau/extra/local_copy/SP_coords/refs.htm</a></li>
 	<li>M.Fraenz and D.Harper, Heliospheric Coordinate Systems, Plan. Space Sci., 50, 217-233 (Feb 2002) - Associated site: <a href="http://www.mps.mpg.de/homes/fraenz/systems/" target="_blank">http://www.mps.mpg.de/homes/fraenz/systems/</a></li>
-	<li><a href="http://cdpp.eu/index.php/Scientific-libraries/maglib.html" target="_blank">MAGLIB</a></li>
-	<li><a href="http://cdpp.eu/index.php/Scientific-libraries/rocotlib.html" target="_blanck">ROCOTLIB</a></li>
+	<li><a href="http://cdpp.irap.omp.eu/index.php/services/scientific-librairies/maglib" target="_blank">MAGLIB</a></li>
+	<li><a href="http://cdpp.irap.omp.eu/index.php/services/scientific-librairies/rocotlib" target="_blanck">ROCOTLIB</a></li>
 </ul>
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