%0 Journal Article %T Multi-species trace gas sensing with dual-wavelength QCLs %A Hundt, P. %A Tuzson, Béla %A Aseev, Oleg %A Liu, Chang %A Scheidegger, Philipp %A Looser, Herbert %A Kapsalidis, Filippos %A Shahmohammadi, Mehran %A Faist, Jérôme %A Emmenegger, Lukas %J Applied Physics B %V 124 %N 6 %P 1-9 %@ 0946-2171 %D 2018-05-17 %I Springer Berlin Heidelberg %~ DeepDyve