Weak temperature gradient effect on the stability of the circular Couette flow V. Lepiller, A. Goharzadeh, A. Prigent and I. Mutabazi Eur. Phys. J. B, 61 4 (2008) 445-455 Published online: 13 March 2008 DOI: 10.1140/epjb/e2008-00105-2