=
SIERREUR(INDEX(LOCATAIRES!$C$2:$C$308;EQUIV('GGE ASSO'!A16;LOCATAIRES!$L$2:$L$308;0));
SIERREUR(INDEX(LOCATAIRES!$C$2:$C$308;EQUIV('GGE ASSO'!A16;LOCATAIRES!$N$2:$N$308;0));
SIERREUR(INDEX(LOCATAIRES!$C$2:$C$308;EQUIV('GGE ASSO'!A16;LOCATAIRES!$P$2:$P$308;0));
"VAC")))