... Roberts¹

<>Permanent address: Centre for microscopy and microanalysis, University of Queensland, Brisbane, Queensland 4072, Australia<>

.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.

... functions²

Technically, the model and composite may still differ by a point-process [39], but this is unlikely to effect the macroscopic properties.

.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.