TY  - JOUR
AU  - Ouatiki, Saliha
AU  - Bouzefrane, Mohamed
TI  - A lower bound on the global powerful alliance number in trees
JO  - RAIRO. Operations Research
PY  - 2021
SP  - 495
EP  - 503
VL  - 55
IS  - 2
PB  - EDP-Sciences
UR  - https://www.numdam.org/articles/10.1051/ro/2021028/
DO  - 10.1051/ro/2021028
LA  - en
ID  - RO_2021__55_2_495_0
ER  -