6 x 6-cm fully depleted pn-junction CCD for high-resolution spectroscopy in the 0.1- to 15-keV photon energy range
6.5-m MMT infrared adaptive optics system: detailed design and progress report
6.7 GHz methanol masers: Properties, Associations and Tracers of Galactic Structure
608 MHz VLBI observations of the compact double radio source 2050 + 364 - Constraints on interstellar scattering