Laser cooling of solids to cryogenic temperatures.Published in:Nature Photonics, 2010, v. 4, n. 3, p. 161, doi. 10.1038/nphoton.2009.269By:Seletskiy, Denis V.;Melgaard, Seth D.;Bigotta, Stefano;Di Lieto, Alberto;Tonelli, Mauro;Sheik-Bahae, MansoorPublication type:Article