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Deprecated: Return type of YamlDataTable::getIterator() should either be compatible with IteratorAggregate::getIterator(): Traversable, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /home/bdavid/prod/georef/yamldoc/ydclasses/yamldata.inc.php on line 295
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inScheme:
  - 100141
  - 100237
prefLabel:
  en: 'air traffic control'
  fr: 'contrôle aérien'
altLabel:
  en:
    - 'air corridor'
    - airway
    - 'air lane'
  fr:
    - 'contrôle de la circulation aérienne'
    - 'couloir aérien'
broader:
  - 3131
related:
  - 2039
  - 4505
  - 906
  - 195
  - 5887
notation:
  - 172