@article{articlec178ed26, title = {Discrimination between thermal quenching of the fluorescence and Auger upconversion processes using thermal lens technique}, author = {Pilla, Viviane and Jenssen, Hans P. and Cassanho, Arlete and Catunda, Tomaz}, year = {2007}, doi = {10.1016/j.optcom.2006.10.005}, journal = {Optics Communications} }