Dust in and towards the Galactic Centre
Dust in planetary nebulae
IAU Symposium No. 131
Infrared features in extragalactic objects
Proceedings of the NATO Advanced Research and CNRS Workshop
Infrared images and line profiles of planetary nebulae
IAU Symposium No. 131
Infrared images of reflection nebulae and Orion's Bar: fluorescent molecular hydrogen and the 3.3 μm feature
IAU Symposium No. 135