Motion of a massive microsphere bound to a spherical vesicle K. Velikov, C. Dietrich, A. Hadjiisky, K. Danov and B. Pouligny Europhys. Lett., 40 4 (1997) 405-410 Published online: 01 September 2002 DOI: 10.1209/epl/i1997-00479-1