Issue
EPL
Volume 97, Number 2, January 2012
Article Number 24003
Number of page(s) 5
Section Electromagnetism, Optics, Acoustics, Heat Transfer, Classical Mechanics, and Fluid Dynamics
DOI http://dx.doi.org/10.1209/0295-5075/97/24003
Published online 17 January 2012

© EPLA, 2012