Lora LUMPE et Jeff DONARSKI
1999, Technical document
Roland POURTIER and Christian COULON and Elisabeth DORIER-APPRIL and Jean Pierre DOZON and Jean Christophe VICTOR
2002, Technical document
Philippe Nouveau
2002, Technical document
Réseau Méga-Tchad
2005, Technical document
ANDRE LINARD
2003, Technical document
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2003, Technical document
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2005, Technical document
.
2005, Technical document
Claude GRASLAND and Grégory HAMEZ
2004, Technical document
IMF
2004, Technical document