TY  - JOUR
A1  - Wellstein, Stephan
A1  - Langer, Norbert
A1  - Braun, H.
T1  - Formation of contact in massive close binaries
Y1  - 2001
ER  - 
TY  - JOUR
A1  - Langer, Norbert
A1  - Braun, H.
A1  - Wellstein, Stephan
T1  - Massive close binaries as source of galatic 26Al
Y1  - 1998
ER  - 
TY  - JOUR
A1  - Langer, Norbert
A1  - Heger, Alexander
A1  - Braun, H.
T1  - Nucleosynthesis in massive stars
Y1  - 1998
ER  -