@article {1852, title = {Slow light propagation and amplification via electromagnetically induced transparency and four-wave mixing in an optically dense atomic vapor}, journal = {J. Mod. Opt.}, volume = {56}, year = {2009}, pages = {1916}, url = {http://www.informaworld.com/smpp/content~db=all~content=a913545405}, author = {Phillips, N B and Alexey V. Gorshkov and Novikova, I} }