Li, Xuefeng Dual Ionically Cross-linked Double-Network Hydrogels with High Strength, Toughness, Swelling Resistance, and Improved 3D Printing Processability. [electronic resource] - ACS applied materials & interfaces Sep 2018 - 31198-31207 p. digital Publication Type: Journal Article ISSN: 1944-8252 Standard No.: 10.1021/acsami.8b13038 doi