1. Institute
of Physical Chemistry, University of Innsbruck, Innrain 52a, A-6020 Innsbruck, Austria
2. Section
of Histology and Embryology, Medical University Innsbruck, Müllerstrasse
59, A-6020 Innsbruck, Austria
3. Institute
of Mineralogy and Petrography, University of Innsbruck, Innrain
52d, A-6020 Innsbruck, Austria