. . "Я Ридберг" . "Я. Ридберг" . "Я" . "Rydberg" . "رايدبرك"@ar-EG . "Ja. Ridberg" . . "Ja." . "Ридберг" . . "J." . . "Jan"@en . . . "J. Rydberg" . "Â. Ridberg" . "Я." . "Â." . . "Ja Ridberg" . . . . . "جان رايدبرك،" . "J. Rydberg" . "Rydberg"@en . "Ridberg" . . . . "リュードベリ" . . "Rydberg J." . "J." . "Ja" . "Jan Rydberg"@en . "2015-03-01" . "1923" . "Rydberg"@fr-FR . . "http://www.wikidata.org/entity/Q6581097" . .