3D Structure of Gaseous Disks in Spiral Galaxies

3D Structure of the Planetary Nebula NGC 7027

3D Structures in Turbulent Convection and How to Read Them

3D structures of steady flow of ideal compressible fluid in MHD: a new model of primordial solar nebula

3D Studies of Recycling Signatures within Irregular Galaxies

3D Transfer of the Diffuse Ionizing Radiation in ISM Flows and the Preionization of a Herbig-Haro Working Surface

3D Velocity-Field Observation of Solar Convection I. Characteristics of Mesogranulation

3D-NTT: a versatile integral field spectro-imager for the NTT

3D-Reconstruction of Density Enhancements Behind Interplanetary Shocks from Solar Mass Ejection White-Light Observations

3D-simulations of a cooling jet-envelope in a rotating narrow-line region in Seyfert galaxies

3D-Spectroscopy of Interacting Galaxies

3D-Spectroscopy with PMAS at Calar Alto

3D-SPH simuliation of accretion discs

3D/Biela and the Andromedids: Fragmenting versus Sublimating Comets

3D: a new generation imaging spectrometer

3D: The new MPE near-infrared field imaging spectrometer

3He in the Blue Horizontal Branch Star Feige 86

3He in the Milky Way Interstellar Medium: Summary of Relevant Observations

3K cosmology from Space. Proceedings. School, L'Aquila (Italy), 1998.

3kk: the Optical-NIR Multi-Channel Nasmyth Imager for the Wendelstein Fraunhofer Telescope