Global drift of a circular array of liquid columns C. Counillon, L. Daudet, T. Podgorski, M. C. Jullien, S. Akamatsu and L. Limat Europhys. Lett., 40 1 (1997) 37-42 Published online: 01 September 2002 DOI: 10.1209/epl/i1997-00421-1