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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
eurovoc (pub)
inScheme:
- 100141
- 100221
topConceptOf:
- 100141
- 100221
prefLabel:
en: 'communications systems'
fr: 'système de communication'
narrower:
- 2566
- '6088'
- '4424'
- c_b12a760a
related:
- 4366
- 4359
notation:
- 4361