Building Innovative GIS Education and Training Programs through Multi-disciplinary Co-operation and International Collaboration. - Paul van Helden (Trans. GIS, 1999)

Validation of the MODIS burned-area products across different biomes in South Africa. - Philemon L. Tsela; Paul van Helden; Philip Frost; Konrad J. Wessels; Sally Archibald (IGARSS, 2010)