by Kienholz, Hans, Schneider, Guy, Bichsel, Marcus, Grunder, Martin, Mool, Pradeep
Published in Mountain research and development (01.08.1984)

by Grunder, Martin
Published in Cities of Change – Addis Ababa (2016)

by Angélil, Marc, Hebel, Dirk
Year of Publication 2016

by Grunder, Martin
Published in Mountain research and development (01.05.1988)

by Martin Grunder (Ministry of Agriculture, Addis Abeba (Ethiopia))
Year of Publication 1992

by GRUENDER.. MARTIN, BUB.. FRITZ, RURIK JOSEF
Year of Publication 23.01.1958