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"Ptolemaic access methods: Challenging the reign of the metric space model."
Magnus Lie Hetland et al. (2013)
- Magnus Lie Hetland, Tomás Skopal
, Jakub Lokoc
, Christian Beecks:
Ptolemaic access methods: Challenging the reign of the metric space model. Inf. Syst. 38(7): 989-1006 (2013)

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