About the tendency of “the Demonstrative kaku + fuku-joshi” Being used as a Degree Adverb or satastic Adverb in the old Japanese. The Kyotogobun. 2002. 9, 24-48
On the Meanings and Usages of the Combined forms of kaku as a Demonstrative Adverb and Some kakari-joshi. The Jyoshidaikokubun. 2002. 131, 57-85