Johnson Ellis L <br/><br/>
Integer programming :Facets subadditivity and duality for group and semi group problems 

 - Philadeiphia  Philadelphia society for Industrial and Applied Mathematics     1980 
 - vii,69p.  cm. 
 - CBMS-NSF regional conference series in applied mathematics; 32 .
<br/><br/><label>Standard No.: </label>21542 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>B2893,P3, M0