• Journal of The Korean Astronomical Society
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• v.29 no.1
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• pp.1-8
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• 1996

When we follow the lines of the trajectory of photons which intersect the circle, the circle may suffer some deformation as approaching to the observer. We consider an infinitesimal light bundle suffering gravitational bending. We examine the deformation of the deflected light bundle due to the gravitational lens. The size of the deformation is expressed in terms of the focal length of the gravitational lens.

• Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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• 2009.04a
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• pp.599-600
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• 2009

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2009.06a
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• pp.301-302
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• 2009

• 대한핵의학회:학술대회논문집
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• 1992.06a
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• pp.183.1-183.1
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• 1992

• Proceedings of the Optical Society of Korea Conference
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• 2004.07a
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• pp.84-85
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• 2004

• Proceedings of the Optical Society of Korea Conference
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• 2007.07a
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• pp.261-262
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• 2007

• Annals of Clinical Neurophysiology
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• v.7 no.2
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• pp.121-123
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• 2005

• Proceedings of the KSMRM Conference
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• 2000.11a
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• pp.65-66
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• 2000

• Proceedings of the KSMRM Conference
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• 2005.09a
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• pp.27-27
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• 2005

• Proceedings of the KSMRM Conference
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• 2006.11a
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• pp.56-56
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• 2006