Issue
EPL
Volume 98, Number 4, May 2012
Article Number 44009
Number of page(s) 6
Section Electromagnetism, Optics, Acoustics, Heat Transfer, Classical Mechanics, and Fluid Dynamics
DOI http://dx.doi.org/10.1209/0295-5075/98/44009
Published online 30 May 2012

© EPLA, 2012