The Econometric SocietyEconometrica: Jan 1944, Volume 12, Issue 1
Cyclically Invariant Graduation
https://doi.org/0012-9682(194401)12:1<19:CIG>2.0.CO;2-0
p.
19-25
C. W. Vickery
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p.
19-25
C. W. Vickery