1. The emergence of “4D printing”;Tibbits,2013
2. 4D printing technology: a review;Choi,2015
3. Clearing the way for pivotal 21st-century innovation;Jacobsen,2016
4. 4D printing: multi-material shape change;Tibbits;Archit. Des.,2014
5. 4D printing and universal transformation;Tibbits,2014