@article{PhysRevFocus.11.20, title = {Mixing it Up (Or Not)}, author = {Krieger, Kim}, journal = {Phys. Rev. Focus}, volume = {11}, issue = {}, pages = {20}, numpages = {1}, year = {2003}, month = {May}, doi = {10.1103/PhysRevFocus.11.20}, url = {http://link.aps.org/doi/10.1103/PhysRevFocus.11.20}, publisher = {American Physical Society} }