%0 Journal Article %A Omrani, Meisam %A Naji-Azimi, Zahra %A Pooya, Alireza %A Salari, Majid %T Optimal location of electronic charity boxes in charity NGOs by proposing a combined mathematical model %J RAIRO. Operations Research %D 2021 %P 1523-1540 %V 55 %N 3 %I EDP-Sciences %U https://www.numdam.org/articles/10.1051/ro/2021071/ %R 10.1051/ro/2021071 %G en %F RO_2021__55_3_1523_0