TY  - JOUR
A1  - Wittkowski, M.
A1  - Langer, Norbert
A1  - Weigelt, G.
T1  - Diffraction-limited Speckle-Masking interferometry of the red supergiant VY CMa*
Y1  - 1998
ER  - 
TY  - JOUR
A1  - Osterbart, R.
A1  - Langer, Norbert
A1  - Weigelt, G.
T1  - High-resolution imaging of the bipola Red Rectangle
Y1  - 1997
ER  -