themes/bootstrap-2/views/articles/_trackback.html.erb
<li d="trackback-<%= trackback.id %>">
<div class="author">
<a href="<%= trackback.url %>" rel="nofollow"><%= trackback.title %></a>
<abbr><% t('.from') %> <cite><%= trackback.blog_name %></cite></abbr>
</div>
<div class="content">
<%= trackback.excerpt %>
</div>
</li>