@article{3504,
  author       = {{Becker, Jörg and Beverungen, Daniel and Knackstedt, Ralf}},
  journal      = {{Information Systems and e-Business Management (ISeB)}},
  number       = {{1}},
  pages        = {{12----32}},
  title        = {{{The Challenge of Conceptual Modeling for Product-Service Systems --- Status-quo and Perspectives for Reference Models and Modeling Languages}}},
  year         = {{2010}},
}