1. Product-service systems: a literature review on integrated products and services;Beuren;J Clean Prod,2013
2. Goedkoop MJ, van Halen CJG, te Riele HRM, Rommens PJM. Product Service systems, Ecological and Economic Basics. PricewaterhouseCoopers N.V. / Pi!MC; Storrm C.S; PRé consultants; 1999.
3. Industrial Product-Service Systems—IPS2;Meier;CIRP Ann,2010
4. Servitization of business: Adding value by adding services;Vandermerwe;Eur Manag J,1988
5. Extended Products: Evolving Traditional Product Concepts;Thoben;7th Int. Conf. Concurr. Enterprising, Bremen:,2001