2013, Clay: new opportunities for tissue regeneration and biomaterial design 4. März 2020 Dawson JI, Oreffo RO Adv Mater. 2013 Aug 14;25(30):4069-86. doi: 10.1002/adma.201301034. Epub 2013 May 31 https://www.ncbi.nlm.nih.gov/pubmed/23722321