Hopf's theorem for non-compact spaces.
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Publication:2603619
DOI10.1073/pnas.23.5.293zbMath63.1164.01OpenAlexW2077284783WikidataQ33742614 ScholiaQ33742614MaRDI QIDQ2603619
Publication date: 1937
Published in: Proceedings of the National Academy of Sciences of the United States of America (Search for Journal in Brave)
Full work available at URL: https://doi.org/10.1073/pnas.23.5.293
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