Influence of firing times on bending strength and microstructure of zirconia/porcelain bilayered dental ceramics
Yi Yuan-fu, Tian Chun-juan, Deng Bin, Wang Chen, Tian Jie-mo, Wen Ning
Chinese Journal of Tissue Engineering Research . 2011, (8): 1437 -1441 .  DOI: 10.3969/j.issn.1673-8225.2011.08.026