This article has an erratum: [erratum]

Issue
EPL
Volume 89, Number 5, March 2010
Article Number 58005
Number of page(s) 6
Section Interdisciplinary Physics and Related Areas of Science and Technology
DOI http://dx.doi.org/10.1209/0295-5075/89/58005
Published online 30 March 2010

© EPLA, 2010