=Paper=
{{Paper
|id=Vol-3982/paper9
|storemode=property
|title=Technology Topic Evolution from the Perspective of Patent Validity
|pdfUrl=https://ceur-ws.org/Vol-3982/paper9.pdf
|volume=Vol-3982
|authors=Jinzhu Zhang,Runze Chen
}}
==Technology Topic Evolution from the Perspective of Patent Validity==
<pdf width="1500px">https://ceur-ws.org/Vol-3982/paper9.pdf</pdf>
<pre>
None
</pre>