Update hochschule-der-kunste-bern-musikforschung.csl

Author: POBrien333

hochschule-der-kunste-bern-musikforschung.csl

@@ -393,9 +393,9 @@
                 <if type="chapter" match="all" variable="volume">
                   <choose>
                     <if match="all" is-numeric="volume">
-                      <group>
-                        <text term="volume" form="short"/>
-                        <number prefix=" " variable="volume"/>
+                      <group delimiter=" ">
+                        <label variable="volume" form="short"/>
+                        <number variable="volume"/>
                       </group>
                     </if>
                     <else>