TY - RPRT TI - Polymeric triple-shape materials. AU - I Bellin AU - S Kelch AU - R Langer AU - A Lendlein PY - 2006 DO - 10.1073/pnas.0608586103 UR - https://pubmed.ncbi.nlm.nih.gov/17116879/ ID - 17116879 ER -