%0 Journal Article
%A Eydi, Alireza
%A Mohebi, Javad
%T Modeling and solution of maximal covering problem considering gradual coverage with variable radius over multi-periods
%J RAIRO - Operations Research - Recherche Opérationnelle
%D 2018
%P 1245-1260
%V 52
%N 4-5
%I EDP-Sciences
%U http://archive.numdam.org/articles/10.1051/ro/2018026/
%R 10.1051/ro/2018026
%G en
%F RO_2018__52_4-5_1245_0