1. Editorial

   • Stefan Wuertz
   • Piet Lens

   Editorial Introduction Pages: 199 - 200

2. Inert filter media for the biofiltration of waste gases – characteristics and biomass control

   • Christian Kennes
   • María C. Veiga

   BookReview Pages: 201 - 214

3. NMR studies on heavy metal immobilization in biosorbents and mineral matrices

   • Nikolaus Nestle

   BookReview Pages: 215 - 225

4. Optical and spectroscopic methods for biofilm examination and monitoring

   • Gundula Wolf
   • João G. Crespo
   • Maria A.M. Reis

   BookReview Pages: 227 - 251

5. Instructions for Authors

   Instructions for Authors Pages: 253 - 256