Steiner Ratio for Hadamard Surfaces of Curvature at Most k < 0
Crossref DOI link: https://doi.org/10.1007/s10958-014-2167-6
Published Online: 2014-11-15
Published Print: 2014-12
Update policy: https://doi.org/10.1007/springer_crossmark_policy
Zavalnyuk, E.
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