@article{Zhao-2013-Nanoscale, doi = {10.1039/c3nr03052k}, year = {2013}, volume = {5}, pages = {9677-9683}, author = {Zhao, W. J. and Ghorannevis, Z. and Amara, K. K. and Pang, J. R. and Toh, M. and Zhang, X. and Kloc, C. and Tan, P. H. and Eda, G.}, title = {Lattice dynamics in mono- and few-layer sheets of {WS}$_2$ and {WS}e$_2$}, journal = {Nanoscale} }