hugo-academic/layouts/partials/section_pager.html

<nav>
    <ul class="pager">
        {{if .PrevInSection}}
        <li class="previous"><a href="{{.PrevInSection.Permalink}}"><span aria-hidden="true">&larr;</span> {{.PrevInSection.Title}}</a></li>
        {{end}}

        {{if .NextInSection}}
        <li class="next"><a href="{{.NextInSection.Permalink}}">{{.NextInSection.Title}} <span aria-hidden="true">&rarr;</span></a></li>
        {{end}}
    </ul>
</nav>