Convention on the Protection of Lake Constance against Pollution
type: Thing
description: International Environmental Convention
additional property: PropertyValue
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  value: state treaty
additional property: PropertyValue
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citations:
  source: Convention on the Protection of Lake Constance against Pollution
  stated in qid: Q1381777
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  data source: Wikidata (CC0 / public domain)
  license: https://creativecommons.org/publicdomain/zero/1.0/
  api version: v1
  served at: 2026-08-07T10:50:11.628370Z
  entity updated at: 2026-05-03T21:19:00.258443+00:00Z
  entity created at: 2026-05-03T15:06:50.411515+00:00Z