... 1984.88. 31 14- 6344- __ are the small single- or several-walled vesicles that coexist with (7) Jiinsson, B.; Wennerstriim, H. J. fhys. Chem., in press. Page 4. Meaning and Structure of Amphiphilic Phases The Journal of Physical Chemistry, Vol. 91, No. 3, 1987 677 ...