<% if (previousArticle || nextArticle) { %>
<% if (previousArticle) { %>
<%= previousArticle.title %>
<% } %>
<% if (nextArticle) { %>
<%= nextArticle.title %>
<% } %>
<% } %>
<% if (previousArticle || nextArticle) { %>
<% if (previousArticle) { %>
<% } %>
<% if (nextArticle) { %>
<% if (nextTitle) { %>
<%= nextTitle %>
<% } %>
<%= nextArticle.title %>
<% } %>
<% } %>