@article{oai:tsukuba.repo.nii.ac.jp:00007292,
 author = {Kusayama, Manabu},
 journal = {Tsukuba English Studies},
 month = {Sep},
 pages = {201--219},
 title = {Middle and Tough-Constructions in English},
 volume = {17},
 year = {1998}
}