M. Becker, M. Böttcher, и S. Klingner. RESER 2011 Productivity of Services NextGen - Beyond Output / Input. Programme and Abstracts, стр. 183--184. (8th/9th 09 2011)
M. Böttcher, M. Becker, и S. Klingner. In Proceedings: Informatik 2011 - Informatik schafft Communities. 41. Jahrestagung der Gesellschaft für Informatik, (Oktober 2011)
F. Schumacher, S. Klingner, R. Gey, и M. Becker. Services and New Societal Challenges: Innovation for Sustainable Growth and Welfare, стр. 1248--1255. (2014)
M. Becker, M. Böttcher, и S. Klingner. RESER 2011 Productivity of Services NextGen - Beyond Output / Input. Programme and Abstracts, стр. 183--184. (8th/9th 09 2011)
S. Klingner, M. Böttcher, M. Becker, и A. Döhler. RESER 2011 Productivity of Services NextGen - Beyond Output/Input. Programme and Abstracts., стр. 150. (8th-9th 09 2011)
M. Becker, S. Klingner, и M. Böttcher. RESER 2011 Productivity of Services NextGen - Beyond Output / Input. Programme and Abstracts, стр. 144--145. (8th/9th 09 2011)
M. Becker, S. Klingner, и M. Böttcher. RESER 2011 Productivity of Services NextGen - Beyond Output / Input. Programme and Abstracts, стр. 144--145. (8th/9th 09 2011)