Mathematical Programming Model on Joint and Recovery of Paper Scrap Zhixia, Jiang ; Jianjun, Yang ; Haifeng, Luo ; Zhengqiang, Wen Abstract Publication: Journal of Applied Sciences Pub Date: December 2014 DOI: 10.3923/jas.2014.2849.2853 Bibcode: 2014JApSc..14.2849Z