Deprecated: Return type of YDataTable::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/ydata.inc.php on line 428

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,
        100272
    ],
    "prefLabel": {
        "en": "apparatus based on the use of rays",
        "fr": "appareil à radiations"
    },
    "altLabel": {
        "en": "laser",
        "fr": [
            "appareil à rayons",
            "laser"
        ]
    },
    "broader": [
        1400
    ],
    "related": [
        5306,
        4110
    ],
    "notation": [
        3874
    ]
}