TY  - JOUR
AU  - Seyed Mahmoud Sheikholeslami
TI  - Upper signed total domination number of directed graphs
JO  - Kragujevac Journal of Mathematics
PY  - 2012
SP  - 349 
VL  - 36
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/KJM_2012_36_2_a17/
LA  - en
ID  - KJM_2012_36_2_a17
ER  -