@article{oai:tsukuba.repo.nii.ac.jp:00007300, author = {Nishida, Koichi and Shimada, Takeshi and Sugiyama, Keiko and Tanaka, Hideki}, journal = {Tsukuba English Studies}, month = {Sep}, pages = {149--150}, title = { Aspects of (Un)boundedness in English}, volume = {18}, year = {1999} }