@article{oai:repository.dl.itc.u-tokyo.ac.jp:00016570,
 author = {Nakatake, Maiko},
 journal = {言語情報科学},
 month = {Mar},
 pages = {135--149},
 title = {The Relationship between the Vocabulary Size and the Knowledge of Lexical Choice of Japanese Learners of English},
 volume = {9},
 year = {2011}
}