<a href="https://en.wikipedia.org/wiki/Richard_Stallman" class="extiw" title="en:Richard Stallman">Richard Stallman</a>'s lecture about copyright at <a href="https://en.wikipedia.org/wiki/University_of_Calgary" class="extiw" title="en:University of Calgary">University of Calgary</a>.
<a rel="nofollow" class="external text" href="https://www.youtube.com/channel/UCXIdM7ABQ8b9FI495vbsHkA">gordonmcdowell</a>
CC BY 3.0
<bdo lang="en" dir="ltr"><a href="//commons.wikimedia.org/wiki/Commons:YouTube_files" title="Commons:YouTube files">YouTube</a>: <a rel="nofollow" class="external text" href="https://www.youtube.com/watch?v=SNBMdDaYhZA"><bdi lang="">Richard Stallman at UofC</bdi></a> – View/save archived versions on <a rel="nofollow" class="external text" href="https://web.archive.org/web/*/https://www.youtube.com/watch?v=SNBMdDaYhZA">archive.org</a> and <a rel="nofollow" class="external text" href="https://archive.today/https://www.youtube.com/watch?v=SNBMdDaYhZA">archive.today</a></bdo>