Malafaya P. B., Pedro A. J., Peterbauer A., Gabriel C., Redl H., and Reis R. L.,  "Chitosan particles agglomerated scaffolds for cartilage and osteochondral tissue engineering approaches with adipose tissue derived stem cells (vol 17, pg 675, 2006)",  Journal of Materials Science-Materials in Medicine, vol. 17, issue 7, pp. 675-675, 2006.