L. D. Solorio, A. S. Fu, R. Hernández-Irizarry, and E. Alsberg, "Chondrogenic differentiation of human mesenchymal stem cell aggregates via controlled release of TGF-beta1 from incorporated polymer microspheres," Journal of Biomedical Materials Research Part A, vol. 92A, pp. 1139-1144, 2009.
 E. Fragonas, M. Valente, M. Pozzi-Mucelli, R. Toffanin, R. Rizzo, F. Silvestri, and F. Vittur, "Articular cartilage repair in rabbits by using suspensions of allogenic chondrocytes in alginate," Biomaterials, vol. 21, pp. 795-801, 2000.
 E. Han, W. C. Bae, N. D. Hsieh-Bonassera, V. W. Wong, B. L. Schumacher, S. Gortz, K. Masuda, W. D. Bugbee, and R. L. Sah, "Shaped, stratified, scaffold-free grafts for articular cartilage defects," Clin Orthop Relat Res, vol. 466, pp. 1912-20, 2008.
 N. S. Hwang, S. Varghese, H. J. Lee, P. Theprungsirikul, A. Canver, B. Sharma, and J. Elisseeff, "Response of zonal chondrocytes to extracellular matrix-hydrogels," FEBS Lett, vol. 581, pp. 4172-8, 2007.
 K. S. Stok, G. Lisignoli, S. Cristino, A. Facchini, and R. Muller, "Mechano-functional assessment of human mesenchymal stem cells grown in three-dimensional hyaluronan-based scaffolds for cartilage tissue engineering," J Biomed Mater Res A, vol. 93, pp. 37-45, Apr 2009.
 A. Derfoul, G. L. Perkins, D. J. Hall, and R. S. Tuan, "Glucocorticoids promote chondrogenic differentiation of adult human mesenchymal stem cells by enhancing expression of cartilage extracellular matrix genes," Stem Cells, vol. 24, pp. 1487-95, Jun 2006.
 C. S. Lee, J. P. Gleghorn, N. Won Choi, M. Cabodi, A. D. Stroock, and L. J. Bonassar, "Integration of layered chondrocyte-seeded alginate hydrogel scaffolds," Biomaterials, vol. 28, pp. 2987-93, 2007.
 K. W. Ng, C. C. B. Wang, R. L. Mauck, T.-A. N. Kelly, N. O. Chahine, K. D. Costa, G. A. Ateshian, and C. T. Hung, "A layered agarose approach to fabricate depth-dependent inhomogeneity in chondrocyte-seeded constructs," Journal of Orthopaedic Research, vol. 23, pp. 134-141, 2005.
 B. A. Harley, A. K. Lynn, Z. Wissner-Gross, W. Bonfield, I. V. Yannas, and L. J. Gibson, "Design of a multiphase osteochondral scaffold III: Fabrication of layered scaffolds with continuous interfaces," J Biomed Mater Res A, vol. 92, pp. 1078-93, Mar 1.
 T. J. Klein, S. C. Rizzi, J. C. Reichert, N. Georgi, J. Malda, W. Schuurman, R. W. Crawford, and D. W. Hutmacher, "Strategies for zonal cartilage repair using hydrogels," Macromol Biosci, vol. 9, pp. 1049-58, Nov 10 2009.
 T. J. Klein, B. L. Schumacher, T. A. Schmidt, K. W. Li, M. S. Voegtline, K. Masuda, E. J. Thonar, and R. L. Sah, "Tissue engineering of stratified articular cartilage from chondrocyte subpopulations," Osteoarthritis Cartilage, vol. 11, pp. 595-602, Aug 2003.
 J. Tritz, R. Rahouadj, N. d. Isla, N. Charif, A. Pinzano, D. Mainard, D. Bensoussan, P. Netter, J.-F. Stoltz, N. Benki-rane-Jessel, and C. Huselstein., "Designing a three-dimensional alginate hydrogel by spraying method for cartilage tissue engineering," Soft Matter, vol. 6, pp. 5165-5174, 2010.
 H. Mjahed, C. Porcel, B. Senger, A. Chassepot, P. Netter, P. Gillet, G. Decher, J.-C. Voegel, P. Schaaf, N. Benkirane-Jessel, and F. Boulmedais, "Micro-stratified architectures based on successive stacking of alginate gel layers and poly(L-lysine)–hyaluronic acid multilayer films aimed at tissue engineering," Soft matter, vol. 4, pp. 1422-1429, 2008.
 J. Tritz-Schiavi, N. Charif, C. Henrionnet, N. de Isla, D. Bensoussan, J. Magdalou, N. Benkirane-Jessel, J. F. Stoltz, and C. Huselstein, "Original approach for cartilage tissue engineering with mesenchymal stem cells," Biomed Mater Eng, vol. 20, pp. 167-74, 2010.
 M. Wong, M. Siegrist, X. Wang, and E. Hunziker, "Development of mechanically stable alginate/chondrocyte constructs: effects of guluronic acid content and matrix synthesis," J Orthop Res, vol. 19, pp. 493-9, 2001.
 S. C. N. Chang, J. A. Rowley, G. Tobias, N. G. Genes, A. K. Roy, D. J. Mooney, C. A. Vacanti, and L. J. Bonassar, "Injection molding of chondrocyte/alginate constructs in the shape of facial implants," Journal of Biomedical Materials Research, vol. 55, pp. 503-511, 2001.
 G. M. Williams, T. J. Klein, and R. L. Sah, "Cell density alters matrix accumulation in two distinct fractions and the mechanical integrity of alginate-chondrocyte constructs," Acta Biomater, vol. 1, pp. 625-33, 2005.
 Y. Wang, N. de Isla, C. Huselstein, B. Wang, P. Netter, J. F. Stoltz, and S. Muller, "Effect of alginate culture and mechanical stimulation on cartilaginous matrix synthesis of rat dedifferentiated chondrocytes," Biomed Mater Eng, vol. 18, pp. S47-54, 2008.