This article has an erratum: [erratum]

Issue
EPL
Volume 94, Number 6, June 2011
Article Number 68007
Number of page(s) 5
Section Interdisciplinary Physics and Related Areas of Science and Technology
DOI http://dx.doi.org/10.1209/0295-5075/94/68007
Published online 08 June 2011

© EPLA, 2011