by Mabuza, M.L., Sithole, M.M., Wale, E., Ortmann, G.F., Darroch, M.A.G.
Published in Land use policy (01.07.2013)

by Darroch, MAG, Lee, RB, Ortmann, GF
Published in South African journal of economic and management sciences (19.10.2012)

by Ortmann, G F, King, R P
Published in Agrekon (01.03.2007)

by Ortmann, G F, King, R P
Published in Agrekon (01.06.2007)

by Baiyegunhi, L.J.S., Hassan, M.B., Danso-Abbeam, G., Ortmann, G.F.
Published in Technology in society (01.02.2019)

by Ortmann, G.F., King, R.P.
Published in Agrekon (01.12.2010)

by Mutenje, M.J., Ortmann, G.F., Ferrer, S.R.D.
Published in Ecological economics (01.01.2011)

by du Toit, JP, Ortmann, GF, Ramroop, S
Published in Agrekon (01.03.2010)

by Browne, M., Ortmann, G.F., Hendriks, S.L.
Published in Agrekon (03.07.2014)

by Browne, M., Ortmann, G.F., Hendriks, S.L.
Published in Agrekon (03.04.2014)

by Mohammed, MA, Ortmann, GF, Ferrer, SR
Published in South African journal of economic and management sciences (01.12.2006)

by Hassan, M.B., Baiyegunhi, L.J.S., Ortmann, G. F., Abdoulaye, T.
Published in Agrekon (02.04.2016)

by Akankwasa, K., Ortmann, G.F., Wale, E., Tushemereirwe, W.K.
Published in Agrekon (01.06.2013)

by Hardman, P.A., Darroch, M.A.G., Ortmann, G.F.
Published in South African journal of economic and management sciences (01.12.2004)

by Mabuza, M.L., Ortmann, G.F., Wale, E.
Published in Agrekon (01.12.2013)

by Chibanda, M, Ortmann, G F, Lyne, M C
Published in Agrekon (01.09.2009)

by Mutenje, M.J., Ortmann, G.F., Ferrer, S.R.D., Darroch, M.A.G.
Published in Agrekon (01.09.2010)

by Ortmann, G F
Published in Agrekon (01.09.2005)

by Mabuza, M.L, Ortmann, G.F, Wale, E
Published in Agrekon (01.12.2012)

by Sparks, G.D, Ortmann, G.F
Published in Agrekon (01.06.2011)