[1] L. C. E. Struik, Physical Aging in Amorphous Polymers and
Other Materials (Elsevier, Oxford, 1978).
[2] W. Kob and J-L. Barrat, Phys. Rev. Lett. 78, 4581 (1997).
[3] J.-P. Bouchaud et al., Report No. cond-mat/9702070.
[4] D. Bonn et al., Europhys. Lett. 45, 52 (1997); W. van
Megen et al., Phys. Rev. E 58, 6073 (1998).
[5] P. N. Segre and D. A. Weitz (unpublished); J. Bergenholtz
and M. Fuchs, Report No. cond-mat/9909260.
[6] L. Cipelletti and D. A. Weitz, Rev. Sci. Instrum. 70, 3214
(1999).
[7] A. H. Krall and D. A. Weitz, Phys. Rev. Lett. 80, 778
(1998).
[8] M. Carpineti and M. Giglio, Phys. Rev. Lett. 68, 3327
(1992); M. Carpineti and M. Giglio, Phys. Rev. Lett. 70,
3828 (1993).
[9] M.Y. Lin, H. M. Lindsay, D.A. Weitz, R. C. Ball, R. Klein,
and P. Meakin, Nature (London) 339, 360 (1989).
[10] Y. Kantor and T. A. Witten, J. Phys. Lett. 45, L675 (1984);
C. Aubert and D. S. Cannell, Phys. Rev. Lett. 56, 738
(1986).
[11] T. Gisler, R.C. Ball, and D. A. Weitz, Phys. Rev. Lett. 82,
1064 (1999).
[12] N. A. M. Verhaegh et al., Physica (Amsterdam) 242A, 104
(1997); W. C. K. Poon et al., Faraday Discuss. 112, 143
(1999).
[13] E. S. Matsuo and T. Tanaka, Nature (London) 358, 482
(1992).
[14] L. D. Landau and E. M. Lifshitz, Theory of Elasticity
(Pergamon Press, Oxford, 1975).
[15] NASA program: Physics of Colloids in Space.
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