Hi everyone, as the title says im having some trouble with a particular citation style im using. Im trying to learn how to edit citation styles, as the last one that has been published for my institution sadly is no longer up to standard.

Im trying to adapat this one: https://www.zotero.org/styles/hochschule-fur-wirtschaft-und-recht-berlin

I have made progress in adapting but i am now stuck on a problem i cant solve.
For some reason the citation style is adding unnessescary repetitions within my bibliography.

Example:

Frank, Sybille und Krawjesky, Georg (2018): Smarter Urbanismus und Urbanität, in: Bauriedl, Sybille und Strüver, Anke (Hrsg.): Smart City - Kritische Perspektiven auf die Digitalisierung in Städten: Digitale Technologien, Raumproduktion, Intervention, Bielefeld, Deutschland, 2018, abgerufen am 06.01.2023, https://www.degruyter.com/document/doi/10.1515/9783839443361/html, ISBN: 978-3-8394-4336-1, container-title: Smart City - Kritische Perspektiven auf die Digitalisierung in Städten.

Everything after the ISBN is unwanted. This only happens when citing book sections.

I think this is the responsible code section?

<bibliography et-al-min="100" et-al-use-first="1" hanging-indent="true">
<sort>
<key macro="hasUrl"/>
<key macro="author"/>
<key macro="date"/>
</sort>
<layout suffix=".">
<group font-weight="bold">
<text macro="author" font-style="normal" font-weight="bold"/>
<text macro="year-date" prefix=" (" suffix="):" font-weight="bold"/>
</group>
<text variable="title" prefix=" "/>
<choose>
<if type="webpage">
<text macro="date" prefix=", "/>
</if>
<else-if type="speech" match="any">
<text variable="publisher-place" prefix=", "/>
<text macro="date" prefix=", "/>
<text macro="accessed" prefix=", "/>
</else-if>
<else-if type="article-newspaper article-magazine article-journal" match="any">
<text value=" In: " font-style="italic"/>
<text variable="container-title" font-style="italic"/>
<text variable="collection-title" prefix=", Reihe "/>
<text variable="volume" prefix=", Band "/>
<text variable="issue" prefix=", Ausgabe "/>
<text macro="date" prefix=", "/>
<text macro="pages"/>
</else-if>
<else-if type="chapter paper-conference" match="any">
<text macro="editor" prefix=", in: " suffix=": "/>
<text variable="container-title" font-style="italic"/>
<text variable="publisher-place" prefix=", "/>
<text variable="edition" prefix=", "/>
<text macro="year-date" prefix=", "/>
<text macro="pages"/>
</else-if>
<else>
<text variable="publisher-place" prefix=", "/>
<text variable="edition" prefix=", "/>
<text macro="year-date" prefix=", "/>
</else>
</choose>
<choose>
<if variable="URL">
<text macro="accessed" prefix=", "/>
<text variable="URL" prefix=", "/>
</if>
</choose>
<text variable="ISBN" prefix=", ISBN: "/>
<text variable="note" prefix=", "/>
</layout>
</bibliography>

If there is a better way to share the citation style please let me know.

Any help welcome.

P.S. while im at it, i also noticed that the Bibliography needs to be sorted alphabeticaly by author name