Add Citing section to site

layouts/_default/baseof.html

@@ -120,6 +120,7 @@
                         <li class="divider"></li>
                         <li class="dropdown-header">Project</li>
                         <li><a href="/about_jena/about.html">About Jena</a></li>
+                        <li><a href="/about_jena/citing.html">Citing</a></li>
                         <li><a href="/about_jena/roadmap.html">Roadmap</a></li>
                         <li><a href="/about_jena/architecture.html">Architecture</a></li>
                         <li><a href="/about_jena/team.html">Project team</a></li>

source/about_jena/citing.md

@@ -0,0 +1,33 @@
+---
+title: Citing Jena
+---
+
+[comment]: <> (https://lists.apache.org/thread/jl8npmty96j1gkflmlpx5c0kcfdjr3f6)
+
+The name of the project is “Apache Jena”. That should appear as the first
+use in a paper and in a reference. After that "Jena" can be used.
+It is also a [trademark](https://www.apache.org/foundation/marks/#books)
+of the Apache Software Foundation. This is also the industry practice.
+
+The reference should indicate the website <https://jena.apache.org/>
+(`https` is preferable). If relevant to reproducibility, or discussing
+performance, the release version number **MUST** also be included. The date
+of access would also be helpful to the reader.
+
+You can use names such as “TDB” and “Fuseki” on their own. They are informal
+names to parts of the whole system. They also change over time and versions.
+You could say “Apache Jena Fuseki” for the triplestore but as the components
+function as part of the whole, “Apache Jena” would be accurate.
+
+The first paper citing Jena is [Jena: implementing the semantic web recommendations](https://dl.acm.org/doi/10.1145/1013367.1013381).
+That only covers the API and its implementation. Some parts of the system
+mentioned in that paper have been dropped a long time ago (e.g. the “RDB”
+system). The paper is also prior to the move to under the Apache Software
+Foundation. It is also good to acknowledge Brian McBride, who started the
+project.
+
+Here is an example of what a citation may look like:
+
+```
+Apache Software Foundation, 2021. Apache Jena, Available at: https://jena.apache.org/.
+```