diff --git a/doc/MANGO.tex b/doc/MANGO.tex
index 6eceaad..4a8e60f 100644
--- a/doc/MANGO.tex
+++ b/doc/MANGO.tex
@@ -256,7 +256,7 @@ \section{Model Overview}
 
 \begin{itemize}[noitemsep,topsep=0pt,parsep=0pt,partopsep=0pt]
 
-  \item \texttt{dataOrigin} (origin of the \texttt{MangoObject}) : The structure of this class is based on
+  \item \texttt{queryOrigin} (origin of the \texttt{MangoObject}) : The structure of this class is based on
         the recommendations of the DCP interest group \footnote{https://ivoa.net/documents/DataOrigin/index.html}.
   \item \texttt{propertyDock} (place holder for all the \texttt{MangoObject} properties) :
         This is an open-ended collection.
diff --git a/doc/model.tex b/doc/model.tex
index a18df33..b6227d3 100644
--- a/doc/model.tex
+++ b/doc/model.tex
@@ -116,13 +116,13 @@ \section{Model: mango }
       \textbf{vodml-id: ColorDef.high} \newline
       \textbf{type: Phot:PhotometryFilter} \newline
       \textbf{multiplicity: 1} \newline
-      Reference to the \texttt{Phot:PhotometryFilter} \citep{2022ivoa.spec.1101S} corresponding to the higher band of the color.
+      Reference to the \texttt{Phot:PhotometryFilter} \citep{2022ivoa.spec.1101S} corresponding to the higher energy band of the color (lower mean wavelength).
 
     \subsubsection{ColorDef.low}
       \textbf{vodml-id: ColorDef.low} \newline
       \textbf{type: Phot:PhotometryFilter} \newline
       \textbf{multiplicity: 1} \newline
-      Reference to the \texttt{Phot:PhotometryFilter} corresponding to the lower band for that color.
+      Reference to the \texttt{Phot:PhotometryFilter} corresponding to the lower energy band for that color (larger mean wavelength).
 
   \subsection{DataLink}
   \label{sect:DataLink}
@@ -553,7 +553,7 @@ \section{Model: mango }
   \begin{itemize}
   
     \item[\textbf{ColorIndex}]: \textbf{vodml-id:} ColorDefinition.ColorIndex \newline
-          \textbf{description:} Difference of magnitudes: typically $M_B - M_v$
+          \textbf{description:} Difference of magnitudes: typically $M_B - M_V$
     \item[\textbf{HardnessRatio}]: \textbf{vodml-id:} ColorDefinition.HardnessRatio \newline
           \textbf{description:} Normalized ratio of fluxes: $(F_{EB2} - F_{EB1}) / (F_{EB2} + F_{EB1})$
   \end{itemize}
@@ -682,7 +682,7 @@ \section{Package: origin }
 
   \subsection{Article}
   \label{sect:origin.Article}
-    Reference article for the \texttt{MangoObject}
+    Reference article for the \texttt{MangoObject}, usually a bibcode or DOI
 
     \subsubsection{Article.editor}
       \textbf{vodml-id: origin.Article.editor} \newline
@@ -694,7 +694,7 @@ \section{Package: origin }
       \textbf{vodml-id: origin.Article.identifier} \newline
       \textbf{type: \hyperref[sect:ivoa]{ivoa:string}} \newline
       \textbf{multiplicity: 1} \newline
-      Identifer of the reference article
+      Identifier of the reference article
 
   \subsection{DataOrigin}
   \label{sect:origin.DataOrigin}
diff --git a/doc/model_toc.tex b/doc/model_toc.tex
index c31bea6..fa4e397 100644
--- a/doc/model_toc.tex
+++ b/doc/model_toc.tex
@@ -360,13 +360,13 @@ \section{Photometric and Spectroscopic Properties}
     \textbf{vodml-id: ColorDef.high} \newline
     \textbf{type: Phot:PhotometryFilter} \newline
     \textbf{multiplicity: 1} \newline
-    Reference to the \texttt{Phot:PhotometryFilter} \citep{2022ivoa.spec.1101S} corresponding to the higher band of the color.
+    Reference to the \texttt{Phot:PhotometryFilter} \citep{2022ivoa.spec.1101S} corresponding to the higher energy band of the color (lower mean wavelength).
 
     \subsubsection{ColorDef.low}
     \textbf{vodml-id: ColorDef.low} \newline
     \textbf{type: Phot:PhotometryFilter} \newline
     \textbf{multiplicity: 1} \newline
-    Reference to the \texttt{Phot:PhotometryFilter} corresponding to the lower band for that color.
+    Reference to the \texttt{Phot:PhotometryFilter} corresponding to the lower energy band for that color (larger mean wavelength).
 
   \subsection{ColorDefinition}
     \label{sect:ColorDefinition}
@@ -376,7 +376,7 @@ \section{Photometric and Spectroscopic Properties}
     \small
     \begin{itemize}
     \item \textbf{ColorIndex}: \textbf{vodml-id:} ColorDefinition.ColorIndex \newline
-    \textbf{description:} Difference of magnitudes: typically $M_B - M_v$
+    \textbf{description:} Difference of magnitudes: typically $M_B - M_V$
     \item \textbf{HardnessRatio}: \textbf{vodml-id:} ColorDefinition.HardnessRatio \newline
     \textbf{description:} Normalized ratio of fluxes: $(F_{EB2} - F_{EB1}) / (F_{EB2} + F_{EB1})$
     \end{itemize}
@@ -720,7 +720,7 @@ \section{Package: origin}
 
   \subsection{Article}
     \label{sect:origin.Article}
-    Reference article for the \texttt{MangoObject}
+    Reference article for the \texttt{MangoObject}, usually a bibcode or DOI
 
     \subsubsection{Article.editor}
     \textbf{vodml-id: origin.Article.editor} \newline
@@ -732,5 +732,5 @@ \section{Package: origin}
     \textbf{vodml-id: origin.Article.identifier} \newline
     \textbf{type: \hyperref[sect:ivoa]{ivoa:string}} \newline
     \textbf{multiplicity: 1} \newline
-    Identifer of the reference article
+    Identifier of the reference article
 
diff --git a/mivot/mango/mango.MangoObject.xml b/mivot/mango/mango.MangoObject.xml
index d45d641..a99da2b 100644
--- a/mivot/mango/mango.MangoObject.xml
+++ b/mivot/mango/mango.MangoObject.xml
@@ -98,7 +98,7 @@ This class specifies both type and role of the  property, and hosts the property
                      <ATTRIBUTE dmrole="mango:origin.DataOrigin.rights_uri" dmtype="ivoa:string" ref="@@@@@" value=""/>
                      <COLLECTION dmrole="mango:origin.DataOrigin.articles">
                         <INSTANCE dmrole="mango:origin.DataOrigin.articles" dmtype="mango:origin.Article">
-                           <!-- Reference article for the \texttt{MangoObject}" -->
+                           <!-- Reference article for the \texttt{MangoObject}, usually a bibcode or DOI" -->
                            <ATTRIBUTE dmrole="mango:origin.Article.editor" dmtype="ivoa:string" ref="@@@@@" value=""/>
                            <ATTRIBUTE dmrole="mango:origin.Article.identifier" dmtype="ivoa:string" ref="@@@@@" value=""/>
                         </INSTANCE>
diff --git a/mivot/mango/mango.origin.Article.xml b/mivot/mango/mango.origin.Article.xml
index 3abca1d..ad398b7 100644
--- a/mivot/mango/mango.origin.Article.xml
+++ b/mivot/mango/mango.origin.Article.xml
@@ -1,5 +1,5 @@
 <INSTANCE dmrole="" dmtype="mango:origin.Article">
-   <!-- Reference article for the \texttt{MangoObject}" -->
+   <!-- Reference article for the \texttt{MangoObject}, usually a bibcode or DOI" -->
    <ATTRIBUTE dmrole="mango:origin.Article.editor" dmtype="ivoa:string" ref="@@@@@" value=""/>
    <ATTRIBUTE dmrole="mango:origin.Article.identifier" dmtype="ivoa:string" ref="@@@@@" value=""/>
 </INSTANCE>
diff --git a/vo-dml/desc.mango.vo-dml.xml b/vo-dml/desc.mango.vo-dml.xml
index ff7e4ee..6e80721 100644
--- a/vo-dml/desc.mango.vo-dml.xml
+++ b/vo-dml/desc.mango.vo-dml.xml
@@ -107,7 +107,7 @@ Using the polygon serialization requires the space coordinate system to be defin
     <literal>
       <vodml-id>ColorDefinition.ColorIndex</vodml-id>
       <name>ColorIndex</name>
-      <description>Difference of magnitudes: typically $M_B - M_v$</description>
+      <description>Difference of magnitudes: typically $M_B - M_V$</description>
     </literal>
     <literal>
       <vodml-id>ColorDefinition.HardnessRatio</vodml-id>
@@ -647,7 +647,7 @@ with a square transfer function.</description>
       <vodml-id>ColorDef.high</vodml-id>
       <name>high</name>
       <description>Reference to the \texttt{Phot:PhotometryFilter} \citep{2022ivoa.spec.1101S} corresponding 
-to the higher band of the color.
+to the higher energy band of the color (lower mean wavelength).
 </description>
       <datatype>
         <vodml-ref>Phot:PhotometryFilter</vodml-ref>
@@ -660,7 +660,8 @@ to the higher band of the color.
     <reference>
       <vodml-id>ColorDef.low</vodml-id>
       <name>low</name>
-      <description>Reference to the \texttt{Phot:PhotometryFilter} corresponding to the lower band for that color.
+      <description>Reference to the \texttt{Phot:PhotometryFilter} corresponding 
+to the lower energy band for that color (larger mean wavelength).
 </description>
       <datatype>
         <vodml-ref>Phot:PhotometryFilter</vodml-ref>
@@ -1391,7 +1392,7 @@ group (see \url{https://ivoa.net/documents/DataOrigin/index.html}).</description
     <objectType>
       <vodml-id>origin.Article</vodml-id>
       <name>Article</name>
-      <description>Reference article for the \texttt{MangoObject}</description>
+      <description>Reference article for the \texttt{MangoObject}, usually a bibcode or DOI</description>
       <attribute>
         <vodml-id>origin.Article.editor</vodml-id>
         <name>editor</name>
@@ -1407,7 +1408,7 @@ group (see \url{https://ivoa.net/documents/DataOrigin/index.html}).</description
       <attribute>
         <vodml-id>origin.Article.identifier</vodml-id>
         <name>identifier</name>
-        <description>Identifer of the reference article</description>
+        <description>Identifier of the reference article</description>
         <datatype>
           <vodml-ref>ivoa:string</vodml-ref>
         </datatype>
diff --git a/vo-dml/desc/desc.ColorDef.high.txt b/vo-dml/desc/desc.ColorDef.high.txt
index ee61b39..7d2ea2a 100644
--- a/vo-dml/desc/desc.ColorDef.high.txt
+++ b/vo-dml/desc/desc.ColorDef.high.txt
@@ -1,2 +1,2 @@
 Reference to the \texttt{Phot:PhotometryFilter} \citep{2022ivoa.spec.1101S} corresponding 
-to the higher band of the color.
+to the higher energy band of the color (lower mean wavelength).
diff --git a/vo-dml/desc/desc.ColorDef.low.txt b/vo-dml/desc/desc.ColorDef.low.txt
index 8dcad6b..f7dcd0a 100644
--- a/vo-dml/desc/desc.ColorDef.low.txt
+++ b/vo-dml/desc/desc.ColorDef.low.txt
@@ -1 +1,2 @@
-Reference to the \texttt{Phot:PhotometryFilter} corresponding to the lower band for that color.
+Reference to the \texttt{Phot:PhotometryFilter} corresponding 
+to the lower energy band for that color (larger mean wavelength).
diff --git a/vo-dml/desc/desc.ColorDefinition.ColorIndex.txt b/vo-dml/desc/desc.ColorDefinition.ColorIndex.txt
index 75b2aa5..617b797 100644
--- a/vo-dml/desc/desc.ColorDefinition.ColorIndex.txt
+++ b/vo-dml/desc/desc.ColorDefinition.ColorIndex.txt
@@ -1 +1 @@
-Difference of magnitudes: typically $M_B - M_v$
\ No newline at end of file
+Difference of magnitudes: typically $M_B - M_V$
\ No newline at end of file
diff --git a/vo-dml/desc/desc.origin.Article.identifier.txt b/vo-dml/desc/desc.origin.Article.identifier.txt
index 08fc76a..524e1c1 100644
--- a/vo-dml/desc/desc.origin.Article.identifier.txt
+++ b/vo-dml/desc/desc.origin.Article.identifier.txt
@@ -1 +1 @@
-Identifer of the reference article
\ No newline at end of file
+Identifier of the reference article
\ No newline at end of file
diff --git a/vo-dml/desc/desc.origin.Article.txt b/vo-dml/desc/desc.origin.Article.txt
index 2fdeb76..020b3d3 100644
--- a/vo-dml/desc/desc.origin.Article.txt
+++ b/vo-dml/desc/desc.origin.Article.txt
@@ -1 +1 @@
-Reference article for the \texttt{MangoObject}
\ No newline at end of file
+Reference article for the \texttt{MangoObject}, usually a bibcode or DOI
\ No newline at end of file