Please take note that due to unforseen circumstances the guest lecture for 11 April has been canceled. The next lecture will be on 9 May 2014 - details will follow soon. Regards Sanet Sanet Eksteen Center for Geoinformation Science Department of Geography, Geoinformatics and Meteorology University of Pretoria Tel no 012 420 3546 To unsubscribe from the list send an empty email to cgis_events-request@xxxxxxxxxxxxx with 'unsubscribe' in the subject field.