Please specify if terms of license are complied with!Sunsurfer (2010-07-07). "Sunsurfer". Sunsurfer.
Please specify if terms of license are complied with!Simone Preuss (2009-08-10). "The Enthralling Symmetry of Beach Umbrellas". www.environmentalgraffiti.com.
Please specify if terms of license are complied with!Simone Preuss (2011-03-19). "«Sonntag der verfolgten Kirche» Verfolgung in Traumdestinationen". www.verfolgung.ch.