@article{175136, author = {C Bucher and K Lehmann and David Plusquellic and Gerald Fraser}, title = {Doppler-Free Nonlinear Absorption in Ethylene by Use of Continuous-Wave Cavity Ringdown Spectroscopy}, year = {2000}, number = {39}, month = {2000-06-01}, publisher = {Applied Optics}, language = {en}, }