Media type: E-Article Title: Product portfolio planning with customer-engineering interaction Contributor: Jiao, Jianxin; Zhang, Yiyang imprint: Informa UK Limited, 2005 Published in: IIE Transactions Language: English DOI: 10.1080/07408170590917011 ISSN: 1545-8830; 0740-817X Origination: Footnote: