@article{RenHovenierHigginsetal.2010, author = {Y. Ren and J. N. Hovenier and R. Higgins and J. R. Gao and T. M. Klapwijk and S. C. Shi and A. Bell and B. Klein and B. S. Williams and S. Kumar and Q. Hu and J. L. Reno}, title = {Terahertz heterodyne spectrometer using a quantum cascade laser}, series = {Applied Physics Letters}, volume = {97}, number = {16}, publisher = {AIP Publishing}, issn = {0003-6951}, doi = {10.1063/1.3502479}, year = {2010}, language = {en} }