Wikipedia: en.wikipedia.or ... https://en.wikipedia.org/wiki/Nonlinearity_(journal)
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Wikipedia: en.wikipedia.or ... https://en.wikipedia.org/wiki/Nonlinearity_(journal)
Wikipedia: nl.wikipedia.or ... https://nl.wikipedia.org/wiki/Nonlinearity
SUDOC: www.sudoc.fr/04 ... http://www.sudoc.fr/040080536
Wikidata: www.wikidata.or ... http://www.wikidata.org/entity/Q13360077
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