- Dorothy A. Miller and Sofia Simmonds
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The Metabolism of L-Threonine and Glycine by Escherichia coli
PNAS 1957 43: 195-199.
[PDF]
- Richard M. Klein and John L. Knupp
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Sterile Induction of Crown-Gall Tumors on Carrot Tissues in vitro
PNAS 1957 43: 199-203.
[PDF]
- Maurice L. Huggins
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The Structure of Alpha Keratin
PNAS 1957 43: 204-209.
[PDF]
- Maurice L. Huggins
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The Structure of Collagen
PNAS 1957 43: 209-213.
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- Paul Doty and R. D. Lundberg
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The Contribution of the
 -Helical Configuration to the Optical Rotation of Polypeptides and Proteins
PNAS 1957 43: 213-222.
[PDF]
- H. Moser
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Contributions to the Theory of the Continuous Bacterial Growth Apparatus. I. Kinetics of Growth of Homogeneous Populations
PNAS 1957 43: 222-226.
[PDF]
- Crodowaldo Pavan, Theodosius Dobzhansky, and Antonio BritoDa Cunha
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Heterosis and Elimination of Weak Homozygotes in Natural Populations of Three Related Species of Drosophila
PNAS 1957 43: 226-234.
[PDF]
- Felix E. Browder
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Regularity Theorems for Solutions of Partial Differential Equations with Variable Coefficients
PNAS 1957 43: 234-236.
[PDF]
- Richard M. Friedberg
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Two Recursively Enumerable Sets of Incomparable Degrees of Unsolvability (Solution of Post's Problem, 1944)
PNAS 1957 43: 236-238.
[PDF]
- Alfred Frolicher and Albert Nijenhuis
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A Theorem on Stability of Complex Structures
PNAS 1957 43: 239-241.
[PDF]
- Witold Hurewicz and Edward Fadell
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On the Spectral Sequence of a Fiber Space. II
PNAS 1957 43: 241-245.
[PDF]
- Pierre LeLong
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Integration of a Differential Form on an Analytic Complex Subvariety
PNAS 1957 43: 246-248.
[PDF]
- Jacqueline LeLong-Ferrand
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Application of Hilbert Space Methods to Lie Groups Acting on a Differentiable Manifold
PNAS 1957 43: 249-252.
[PDF]
- H. S. Vandiver
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Errata: Diophantine Equations in Certain Rings
PNAS 1957 43: 252-253.
[PDF]
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