@misc{indiciae16a5e2fa7d06, title = {Terahertz semiconductor-heterostructure laser.}, author = {Rüdeger Köhler and Alessandro Tredicucci and Fabio Beltram and Harvey E Beere and Edmund H Linfield and A Giles Davies and David A Ritchie and Rita C Iotti and Fausto Rossi}, year = {2002}, doi = {10.1038/417156a}, url = {https://pubmed.ncbi.nlm.nih.gov/12000955/}, note = {Source identifier: 12000955} }