<% unless @page.linked_from.empty? %> | Linked from: <%= @page.linked_from.collect { |referring_page| link_to_existing_page referring_page }.join(", ") %> <% end %> <% unless @page.included_from.empty? %> | Included from: <%= @page.included_from.collect { |referring_page| link_to_existing_page referring_page }.join(", ") %> <% end %>