diff --git a/cave_data/1623-CUCC2015DL02.html b/cave_data/1623-CUCC2015DL02.html
index 2c4e3fcfc..7bb93ff0b 100644
--- a/cave_data/1623-CUCC2015DL02.html
+++ b/cave_data/1623-CUCC2015DL02.html
@@ -29,7 +29,7 @@ code used in the Austrian kataster e.g '1/S +' - https://expo/.survex.com/katast
     +   erforscht (exploration considered complete)
  -->
 <kataster_number></kataster_number> <!-- (Either this or unofficial_number is required). Official number in Austrian kataster if one has been allocated  -->
-<unofficial_number>2015-DL-02</unofficial_number><!-- (Either this or kataster_number is required). Initial temporary cave ID used until kataster number is allocated e.g. '2012-DD-01'-->
+<unofficial_number>CUCC2015DL02</unofficial_number><!-- (Either this or kataster_number is required). Initial temporary cave ID used until kataster number is allocated e.g. '2012-DD-01'-->
 
 <entrance>
   <entranceslug>1623-CUCC2015DL02</entranceslug><!-- Internal ID to refer to each entrance instance in the entrance files (typically the same as that filename (e.g. 1623-161c). Matches the 'slug' field in the entrance file -->
@@ -40,7 +40,7 @@ code used in the Austrian kataster e.g '1/S +' - https://expo/.survex.com/katast
 Dan Lenartowicz</explorers><!-- 'CUCC Expo' and year(s) of exploration. To distinguish from caves explored by foreign groups. Individual names can be given too if it was a small cave. -->
 <underground_description>2m high 15m wide horizontal entrance 2-3m climb down leads to 25* choss slope (V. loose!) after aprox 15m turns right around corner. Possible aven but not very promising. (QMC)</underground_description><!-- Underground description. (description of approach and entrance goes in entrance file). For a small cave this will be the entire description. For larger caves it will be the front page of the description, or a short intro, containing links to other pages with the cave description in, or even nothing but a link. -->
 <equipment></equipment><!-- For a small cave, summary of gear needed to descend. For longer caves it could be blank, a table, or just refer to the description/topos. Leave blank if this info is in the description. -->
-<references>2015DL02</references><!-- References to documentation. Could be Journal articles or Logbook entries. Can be links if the docs are online. -->
+<references>CUCC2015DL02</references><!-- References to documentation. Could be Journal articles or Logbook entries. Can be links if the docs are online. -->
 <survey></survey><!-- Drawn-up surveys. Scans of paper surveys or images/PDFs of electronic surveys. Should include HTML to display current plan and elevation, with links to larger versions (See section on URLs and files). Could list links to multiple years of survey, or even a separate survey page if it's complicated enough. -->
 <kataster_status></kataster_status>
 <underground_centre_line></underground_centre_line><!-- 'In dataset' if it is in the survex dataset. Blank if not, or notes about status such as 'surveyed, but no entrance fix so not yet in dataset'. -->