enhancement for reference s / name Preite Martinez

Makefile

@@ -7,7 +7,7 @@ DOCNAME = UCDlist
 DOCVERSION = 1.4
 
 # Publication date, ISO format; update manually for "releases"
-DOCDATE = 2021-04-30
+DOCDATE = 2021-05-04
 
 # What is it you're writing: NOTE, WD, PR, REC, PEN, or EN
 DOCTYPE = PEN

UCDlist.tex

@@ -699,13 +699,13 @@ \subsection{Definition of atoms}
 
 \subsection{Definition of words}
 \label{sec:words}
-The list of UCD1+ words presented in this document was initially generated applying the rules and 
-recommendations of PR-UCD-20040823 to catalogues/tables in VizieR. The original motivation was to 
-transform old UCD1 into an improved version, trying to build a list of combinations of new words that 
-could describe all the existing UCD1 terms.
 
-The list of UCD1+ words is maintained by the UCD Scientific Board, following the procedure defined 
-in the UCD Recommendation document \citep{2019ivoa.spec.1007G}.
+The list of UCD1+ words is evolving following the requirements of new datasets distributed in the 
+IVOA ecosystem. The last iteration on the list included new terms for planetary data and was 
+published in an IVOA REC specification \citep{2018ivoa.spec.0527PM}.
+
+It is maintained following advice from a UCD Scientific Board, and published as an Endorsed Note 
+from version 1.4 onwards following the procedure recommended in \citep{2019ivoa.spec.1007G}. 
 
 \section{The structure of the UCD1+ tree}
 All existing UCD1+ words are grouped into 12 main categories. These categories are expressed by the 
@@ -771,8 +771,9 @@ \subsection{Goal}
 
 \subsection{Remarks on combination rules}
 The combination rules have been defined in the first IVOA documents defining UCD concept
-\citep{2005ivoa.spec.0819D}. They are exposed with a syntax tag given as a property of each UCD word 
-and included in the list of UCD words. See Appendix \ref{sec:list} with the tags definitions on top.
+\citep{2005ivoa.spec.0819D} and refined in the last UCD1+ standard recommendation \citep{2018ivoa.spec.0527PM}. 
+They are exposed with a syntax tag given as a property of each UCD word 
+and included in the list of UCD words. See Section \ref{sec:list} with the tags definitions on top.
 
 They correspond to real usage of the terms in science publications and are attached to the description 
 of catalogues’ column by experimented data scientists. UCD combination also reflects the catalogues 

localrefs.bib

@@ -54,3 +54,16 @@ @misc{std:UCDMAINT-PR
         Url = {http://www.ivoa.net/documents/UCDlistMaintenance/},
         Year = {2019},
 }
+
+@MISC{2018ivoa.spec.0527PM,
+       author = {{Preite Martinez}, Andrea and {Louys}, Mireille and {Cecconi}, Baptiste and {Derriere}, Sebastien and {Ochsenbein}, Fran{\c{c}}ois and {IVOA Semantic Working Group}},
+        title = "{The UCD1+ controlled vocabulary Version 1.3}",
+ howpublished = {IVOA Recommendation 27 May 2018},
+         year = 2018,
+        month = may,
+        pages = {527},
+          doi = {10.5479/ADS/bib/2018ivoa.spec.0527M},
+       adsurl = {https://ui.adsabs.harvard.edu/abs/2018ivoa.spec.0527M},
+      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
+}
+