@article{oai:repository.dl.itc.u-tokyo.ac.jp:00016563,
 author = {Nakayama, Masami},
 journal = {言語情報科学},
 month = {Mar},
 pages = {19--30},
 title = {What Children's Literature Tells Us about Non-standard Language : The Use of Ain't and Don't in The Water Babies},
 volume = {9},
 year = {2011}
}