Fig. 9From: Experiments using Semantic Web technologies to connect IUGONET, ESPAS and GFZ ISDC data portalsGraphical user interface of the ISDC GFZ—Semantic Web-based proof of concept. The data system is realized using Virtuoso Universal Server (http://virtuoso.openlinksw.com/) and Drupal 7 (https://drupal.org/)Back to article page