A Corpus-based Study on the Frequency and Usage of English Relative Clauses in Two Science Journals
Dong Wan Cho
외국어교육 제16권 제3호 (2009.12) pp.1-20
Processing of L2 English Relative Clauses - Testing the Filler-Gap Hypothesis
이다미, 권수옥
외국어교육 제15권 제1호 (2008.06) pp.91-107