Customization 4.0 Proceedings of the 9th World Mass Customization & Personalization Conference (MCPC 2017), Aachen, Germany, November 20th-21st, 2017 - Hankammer, Stephan; Hankammer, Stephan; Nielsen, Kjeld; Nielsen, Kjeld; Piller, Frank T.; Piller, Frank T.; Schuh, Günther; Schuh, Günther; Wang, Ning; Wang, Ning (Springer International Publishing : Imprint: Springer, 2018)