1. A.O. Akingbade, 'Conversion of 1:50,000 Topographical Maps from Analogue to Digital and Updating of the Digital Topographic Database' ( 2001) Online Coaching Systems, German Foundation for International Development (DSE) Workshop, Cape Town, South Africa
2. The Nigerian Topographic Map Digitalisation Initiative: Current Work;F.O. Akinyemi;International Archives of Photogrammetry, Remote Sensing and Spatial Information Sciences
3. Interactive Maps for Visual Data Exploration;G.L. Andrienko;International Journal of Geographical Information Science
4. Space, Time and Visual Analytics;G. Andrienko;International Journal of Geographical Information Science