"The intensifier 'ass', in snippets", Improbable Research 11/3/2014:
snippets journal publishes notes that contribute to the study of syntax and semantics in generative grammar. The notes are brief, self-contained and explicit. For an example of the content, can we recommend a 2011 paper by Professor Daniel Siddiqi (Carlton University, US) who examines the ‘ass’ intensifier. […]
See: 'The English intensifier ass' in: snippets, issue 23, May 2011.
But Daniel Siddiqi failed to cite a number of earlier (and more complete) publications, and Improbable Research misses a bunch more.