@base .
a ;
.
"England" .
a , ;
"International journal of operational research (Print)" .
a ;
"1745-7645" ;
.
a .
a ;
"1745-7645" ;
.
a , , ;
, , ;
"International journal of operational research." ;
;
;
;
"1745-7645" ;
;
;
"1745-7645" ;
;
"1745-7645" ;
"International journal of operational research (Print)" , "International journal of operational research." ;
.
.
a ;
;
"20160604172200.0"^^ ;
;
.