Daniel Risch
and Petra Schubert
and Uwe LeimstollProceedings of the Joint Conference of the International Mass Customization Meeting 2006 (IMCM) and the International Conference on Economic, Technical and Organisational Aspects of Product Configuration Systems (PETO)
425--438
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Kasper Hornb\aek
and Erik Fr\okj\aerCHI '08: Proceeding of the twenty-sixth annual SIGCHI conference on Human factors in computing systems
903--912
(2008)