Issue
EPL
Volume 94, Number 4, May 2011
Article Number 44004
Number of page(s) 5
Section Electromagnetism, Optics, Acoustics, Heat Transfer, Classical Mechanics, and Fluid Dynamics
DOI http://dx.doi.org/10.1209/0295-5075/94/44004
Published online 16 May 2011

© EPLA, 2011