Correction by Markus Rehm, 091109:
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On page 7 the syntax for multiple porous zones reads

1
(
  <cellZoneName>
  {
      Defintions.
  }
)
2
(
  <anotherCellZoneName>
  {
      Defintions.
  }
)

but it should be instead:

2
(
  <cellZoneName>
  {
      Defintions.
  }

  <anotherCellZoneName>
  {
      Defintions.
  }
)
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