@article{PhysRevFocus.10.17, title = {Dirt Radar}, author = {Klarreich, Erica}, journal = {Phys. Rev. Focus}, volume = {10}, issue = {}, pages = {17}, numpages = {1}, year = {2002}, month = {Oct}, doi = {10.1103/PhysRevFocus.10.17}, url = {http://link.aps.org/doi/10.1103/PhysRevFocus.10.17}, publisher = {American Physical Society} }