TY  - JOUR
AU  - M. Atapour
AU  - S. Norouzian
AU  - S. M. Sheikholeslami
AU  - L. Volkmann
TI  - Twin signed domination numbers in directed graphs
JO  - Algebra and discrete mathematics
PY  - 2017
SP  - 71
EP  - 89
VL  - 24
IS  - 1
PB  - mathdoc
UR  - https://geodesic-test.mathdoc.fr/item/ADM_2017_24_1_a4/
LA  - en
ID  - ADM_2017_24_1_a4
ER  -