AURICH J, FUCHS C, WAGEMKNECHT C. Life cycle oriented design of technical product-service systems[J]. Journal of Cleaner Production,2006,14(17):1480-1494.
[2]
SAKAO T, SHIMOMURA Y. Service engineering:a novel engineering discipline for producers to increase value combining service and product[J]. Journal of Cleaner Production,2007,15(6):590-604.