G. Tappan

Agroenvironmental transformation in the Sahel: another kind of "Green Revolution".

C. Reij, G. Tappan, M. Smale, 2009 .

Landscapes of West Africa: A window on a changing world

G. Tappan, Suzanne E. Cotillon, 2016 .

Re-greening the Sahel: farmer-led innovation in Burkina Faso and Niger.

C. Reij, G. Tappan, M. Smale, 2009 .