Update publications.md

Author: staeiou

_pages/publications.md

@@ -4,7 +4,9 @@ title: "Publications"
 permalink: /publications/
 author_profile: true
 ---
-You can also find my articles on <u><a href="http://scholar.google.com/yourgooglescholarprofile">my Google Scholar profile</a>.</u>
+
+{% if author.googlescholar %}
+  {{ You can also find my articles on <u><a href="{% author.googlescholar %}">my Google Scholar profile</a>.</u> }}
 
 {% include base_path %}