@article { tang09c, title = {An optical approach to the salivary pellicle}, journal = {J. of Biomed. Opt.}, volume = {14}, year = {2009}, month = {07/2009}, pages = {Art. No. 044001}, author = {J.H. Baek, T. Krasieva, S. Tang, Y.C. Ahn, C.S. kim, D. Vu, Z.P. Chen, and P. Wilder-Smith} }