@article{5048, author = {Eric Cornell and Kevin Boyce and Deborah Fygenson and D. Pritchard}, title = {Two ions in a Penning trap: Implications for precision mass spectroscopy}, year = {1992}, journal = {Physical Review A}, volume = {45}, pages = {3049-3059}, month = {1992-03}, issn = {1050-2947}, url = {http://link.aps.org/doi/10.1103/PhysRevA.45.3049}, doi = {10.1103/PhysRevA.45.3049}, }