hugo-academic/layouts/sitemap.xml

<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9" xmlns:xhtml="http://www.w3.org/1999/xhtml">
  {{ range .Data.Pages }}
    <url>
    {{ if .IsTranslated }}
      <xhtml:link rel="alternate" href="{{ .Permalink }}" hreflang="{{ .Lang }}"/>{{ range .Translations }}
      <xhtml:link rel="alternate" href="{{ .Permalink }}" hreflang="{{ .Lang }}"/>{{ end }}
    {{ end }}
      <loc>{{ .Permalink }}</loc>{{ if not .Lastmod.IsZero }}
      <lastmod>{{ safeHTML ( .Lastmod.Format "2006-01-02T15:04:05-07:00" ) }}</lastmod>{{ end }}{{ with .Sitemap.ChangeFreq }}
      <changefreq>{{ . }}</changefreq>{{ end }}{{ if ge .Sitemap.Priority 0.0 }}
      <priority>{{ .Sitemap.Priority }}</priority>{{ end }}
    </url>
  {{ end }}
</urlset>