@article{993, author = {Cindy Regal and Deborah Jin}, title = {Measurement of Positive and Negative Scattering Lengths in a Fermi Gas of Atoms}, year = {2003}, journal = {Physical Review Letters}, volume = {90}, pages = {230404}, month = {2003-06}, issn = {0031-9007}, doi = {10.1103/PhysRevLett.90.230404}, }