wittmann in A Sentence

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    Wittmann's classification went into Ethnologue's database where

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    Wittmann's references on the subject,

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    Wittmann's classification went into Ethnologue's database where it is still cited.

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    Wittmann's references on the subject, besides his own work on creolization and relexification in spoken languages, include papers such as Fischer(1974, 1978), Deuchar(1987) and Judy Kegl's pre-1991 work on creolization in sign languages.

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    The subsequent edition of Ethnologue in 1992 went up to 81 sign languages, ultimately adopting Wittmann's distinction between primary and alternate sign languages(going back ultimately to Stokoe 1974) and, more vaguely, some other traits from his analysis.

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    Wittmann's explanation for this is that models of acquisition and transmission for sign languages are not based on any typical parent-child relation model of direct transmission which is inducive to variation and change to a greater extent.

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    Wittmann's classification went into Ethnologue's database where it is still cited.[4] The subsequent edition of Ethnologue in 1992 went up to 81 sign languages and ultimately adopting Wittmann's distinction between primary and alternates sign langues(going back ultimately to Stokoe 1974) and, more vaguely, some other of his traits.

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    Wittmann adds that this taxonmic criteron is not really applicable with any scientific rigor: Alternative sign languages, to the extent that they are full-fledged natural languages(and therefore included in his survey), are mostly used by the deaf as well; and some primary sign languages(such as ASL(ase) and ADS) have acquired alternative usages.

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