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Challenges of animal traction research and development in West and Central Africa at the eve of the 21st century. Havard Michel, Njoya Aboubakar, Pirot Roland, Vall Eric, Wampfler Betty. 2000. In : Empowering farmers with animal traction : Proceedings of the workshop of the Animal Traction Network for Eastern and Southern Africa (ATNESA), 20-24 September 1999, Mpumalanga, South Africa. Kaumbutho Pascal (ed.), Pearson Anne (ed.), Simalenga Timothy (ed.). ATNESA, ATNESA-SANAT. Alice : SANAT, 296-302. ISBN 0-907146-10-4 Workshop of the Animal Traction Network for Eastern and Southern Africa, Mpumalanga, Afrique du Sud, 20 Septembre 1999/24 Septembre 1999.

Challenges of animal traction research and development in West and Central Africa at the eve of the 21st century. Havard Michel, Njoya Aboubakar, Pirot Roland, Vall Eric, Wampfler Betty. 2000. In : Empowering farmers with animal traction : Proceedings of the workshop of the Animal Traction Network for Eastern and Southern Africa (ATNESA), 20-24 September 1999, Mpumalanga, South Africa. Kaumbutho Pascal (ed.), Pearson Anne (ed.), Simalenga Timothy (ed.). ATNESA, ATNESA-SANAT. Alice : SANAT, 296-302. ISBN 0-907146-10-4 Workshop of the Animal Traction Network for Eastern and Southern Africa, Mpumalanga, Afrique du Sud, 20 Septembre 1999/24 Septembre 1999.

Developing suitable yokes for draft oxen in sub-Saharan Africa. Havard Michel, Le Thiec Gérard. 1999. In : Meeting the challenges of animal traction : Animal Traction Network for Eastern and Southern Africa (ATNESA). Starkey Paul (ed.), Kaumbutho Pascal (ed.). ATNESA. London : Intermediate Technology Publications, 134-139. ISBN 1-85339-483-1 Meeting the challenge of animal traction, Karen, Kenya, 4 Décembre 1995/8 Décembre 1995.

Environmental influences on the adoption of animal traction. Havard Michel, Le Thiec Gérard. 1999. In : Meeting the challenges of animal traction : Animal Traction Network for Eastern and Southern Africa (ATNESA). Starkey Paul (ed.), Kaumbutho Pascal (ed.). ATNESA. London : Intermediate Technology Publications, 60-67. ISBN 1-85339-483-1 Meeting the challenge of animal traction, Karen, Kenya, 4 Décembre 1995/8 Décembre 1995.

Animal traction in Western Africa and Madagascar. Influence of the environment on its development and use. Havard Michel, Le Thiec Gérard. 1995. In : The Challenge of Animal Traction, ATNESA Network. Montpellier : CIRAD-SAR, 11 p. Meeting the challenge of animal traction, Karen, Kenya, 4 Décembre 1995/8 Décembre 1995.

Developing suitable yokes for draft oxen in Sub-saharan Africa. Le Thiec Gérard, Havard Michel. 1995. In : The Challenge of Animal Traction, ATNESA Network. Montpellier : CIRAD-SAR, 9 p. Meeting the challenge of animal traction, Karen, Kenya, 4 Décembre 1995/8 Décembre 1995.

La traction animale en Afrique de l'Ouest et à Madagascar. Influence du milieu sur son développement, ses effets dans l'exploitation. Havard Michel, Le Thiec Gérard. 1995. In : The Challenge of Animal Traction, ATNESA Network. Montpellier : CIRAD-SAR, 13 p. Meeting the challenge of animal traction, Karen, Kenya, 4 Décembre 1995/8 Décembre 1995.

Quels jougs pour les bovins de trait en Afrique sub-saharienne? Le Thiec Gérard, Havard Michel. 1995. In : The Challenge of Animal Traction, ATNESA Network. Montpellier : CIRAD-SAR, 10 p. Meeting the challenge of animal traction, Karen, Kenya, 4 Décembre 1995/8 Décembre 1995.