Shawn Callahan
发表
Richard G. Dekany,
Daniel J. Reiley,
Roger M. Smith,
2017,
Other Conferences.
Peter Spencer,
Dan Blanco,
Steven C. West,
2004,
SPIE Astronomical Telescopes + Instrumentation.
German Schumacher,
Jacques Sebag,
George Angeli,
2016,
Astronomical Telescopes + Instrumentation.
Eduardo Serrano,
James Roger P. Angel,
Brian J. Bauman,
2008,
The Astrophysical Journal.
Michael Hart,
Vidhya Vaitheeswaran,
S. Mark Ammons,
2010,
Astronomical Telescopes + Instrumentation.
Patricia Milne,
Shawn Callahan,
P. Milne,
2006,
J. Knowl. Manag..
Shawn Callahan,
Paul Shelley,
S. Callahan,
1996,
MD.
Shawn Callahan,
S. Callahan,
2004
.
Shawn Callahan,
2004
.