diff --git a/Manual/doc_tex/Manual/cgal_manual.bib b/Manual/doc_tex/Manual/cgal_manual.bib
index 5b78caf11d0..a2f978406a0 100644
--- a/Manual/doc_tex/Manual/cgal_manual.bib
+++ b/Manual/doc_tex/Manual/cgal_manual.bib
@@ -207,6 +207,18 @@ Pion and Monique Teillaud and Mariette Yvinec"
   pages = "99--106"
 }
 
+@TechReport{cgal:bhkt-risak-07,
+  author        = {Berberich, Eric and Hemmer, Michael and
+                   Karavelas, Menelaos I. and Teillaud, Monique},
+  title         = {Revision of the interface specification of algebraic kernel},
+  institution   = {INRIA Sophia-Antipolis, Max Planck Institut f{\"u}r
+                   Informatik, National University of Athens},
+  year          = {2007},
+  type          = {Technical Report},
+  number        = {ACS-TR-243301-01},
+  update        = "09.12 penarand"
+}
+
 @book{ cgal:bn-sec++-94
   ,author       = "J. J. Barton and L. R. Nackman"
   ,title        = "Scientific and Engineering {C{\tt ++}}"
@@ -1110,7 +1122,7 @@ Voronoi diagram"
 }
 
 @INPROCEEDINGS{cgal:lazard04b,
-AUTHOR = {Lazard, Sylvain and  Pe{\~n}aranda, Luis Mariano and Petitjean, Sylvain},
+AUTHOR = {Lazard, Sylvain and  Pe{\~n}aranda, Luis and Petitjean, Sylvain},
 TITLE = {Intersecting Quadrics\,: An Efficient and Exact Implementation},
 BOOKTITLE = {{ACM Symposium on Computational Geometry - SoCG'2004, Brooklyn, NY}},
 YEAR ={ 2004},