Here's two examples: the journals are obscure, but you'd have to see if you uni. subscribes to them.
The English Adjective Phrase
Gothenburg Studies in English, 2001, 81, 23-37
... phrase constituent: the adjective head, a pre- or postmodifier, or a constituent embedded within the premodifier. The absolute & relative frequencies of structural types & functions of adjective phrases are tabulated for seven text samples ...
. Noun Phrase Structure as an Indication of Text Variety
De Haan, Pieter
anglistik und englischunterricht, 1993, 49, 85-106
... they occur, & the distribution of major noun phrase postmodifier types is described. Significant relationships are found between the structure & type of noun phrases & the function they fulfill, as well as the types of text in which they occur. ...
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