Urs Ulrich Graf
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Mirka Miller,
Gisbert Winnewisser,
Cuno G. Degiacomi,
1998,
Astronomical Telescopes and Instrumentation.
Stephan Stanko,
Stefan Heyminck,
Urs Ulrich Graf,
2002
.
Christopher K. Walker,
Gopal Narayanan,
Dathon R. Golish,
2003,
SPIE Astronomical Telescopes + Instrumentation.
Axel Murk,
D. Rabanus,
Urs Ulrich Graf,
2005
.
Mirka Miller,
Juergen Stutzki,
Urs Ulrich Graf,
2003,
SPIE Astronomical Telescopes + Instrumentation.
Stefan Heyminck,
Urs Ulrich Graf,
2000,
Astronomical Telescopes and Instrumentation.
Stefan Heyminck,
Urs Ulrich Graf,
2001
.
C. E. Honingh,
Frank Lewen,
Juergen Stutzki,
2000,
Astronomical Telescopes and Instrumentation.
Paul Hartogh,
Stefan Heyminck,
Jurgen Stutzki,
2009
.
Erick T. Young,
C. E. Honingh,
Paul F. Goldsmith,
2008
.
C. E. Honingh,
S. Haas,
Juergen Stutzki,
1998,
Astronomical Telescopes and Instrumentation.
C. E. Honingh,
Keren Jacobs,
Stefan Heyminck,
2004
.
Stefan Heyminck,
Urs Ulrich Graf,
2000
.
C. E. Honingh,
Urs Ulrich Graf,
Karl Jacobs,
2015
.
Stefan Heyminck,
Ernest A. Michael,
Urs Ulrich Graf,
2001
.
Stefan Heyminck,
Urs Ulrich Graf,
S. Heyminck,
2001
.
Erick T. Young,
Imran Mehdi,
Anders Skalare,
2008
.
Keren Jacobs,
D. Rabanus,
Urs Ulrich Graf,
2005
.
Hao Ling,
Daniel T. Jaffe,
Urs Ulrich Graf,
1992
.
Nicolas Reyes,
Heinz-Wilhelm Hübers,
Keren Jacobs,
2015
.