The Gaussian formula and the elusive fourth principal ray
Keyword(s):
2001 ◽
Vol 04
(04)
◽
pp. 417-488
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2013 ◽
Vol 133
(11)
◽
pp. 3717-3738
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Keyword(s):
2016 ◽
Vol 12
(02)
◽
pp. 495-504
◽