Authors: Tracy C. Larkin, James R. Lindner , Joseph J. Molnar , Christopher A. Clemons, Jason D. McKibben.
Authors: Batllori Sampedro Eduardo Adolfo.
Authors: BRAHIM ADOUM A, ABDOULLAHI HISSEIN O, AL-LAMADINE MAHAMAT, ALI HAROUN, DENIS ERBI, Abdelsalam TIDJANI, Aly SAVADOGO.BRAHIM ADOUM A, ABDOULLAHI HISSEIN O, AL-LAMADINE MAHAMAT, ALI HAROUN, DENIS ERBI, Abdelsalam TIDJANI, Aly SAVADOGO