Modal operator

https://www.wikidata.org/wiki/Q638442

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Computer science 54.8M papers	Chemistry 28.4M papers	Materials science 18.2M papers	Artificial intelligence 11.2M papers
Composite material 8.6M papers	Programming language 7.2M papers	Polymer chemistry 1.1M papers	Theoretical computer science 615k papers
Modal 95.4k papers		Description logic 18.8k papers
Current
Modal operator 1,084 papers
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