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Proceedings of the National Academy of Sciences of the United States of America logoLink to Proceedings of the National Academy of Sciences of the United States of America
. 1962 Jan;48(1):22. doi: 10.1073/pnas.48.1.22

SPACES IN WHICH THE GEODESICS ARE MINIMAL CURVES

Luther P Eisenhart 1
PMCID: PMC285485  PMID: 16590911

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