@article {643473,
	title = {Shape-Shifting Structured Lattices via Multimaterial 4D Printing},
	journal = {PNAS                },
	year = {2019},
	author = {William J. Boley and Wim M. van Rees and Charles Lissandrello and Mark N. Horenstein and Ryan L. Truby and Arda Kotikian and Jennifer A. Lewis and L. Mahadevan}
}
