@ARTICLE{PhysRevLett.101.085006, author = {Kotelnikov, Igor and Rom\'e, Massimiliano}, volume = {101}, journal = {Phys. Rev. Lett.}, month = {Aug}, pagetotal = {4}, title = {Admissible Equilibria of Non-neutral Plasmas in a Malmberg-Penning Trap}, year = {2008}, doi = {10.1103/PhysRevLett.101.085006}, issue = {8}, publisher = {American Physical Society}, pages = {085006}, } % url = {http://link.aps.org/doi/10.1103/PhysRevLett.101.085006},