@article{oai:tsukuba.repo.nii.ac.jp:00007350, author = {Iwasaki, Hiroyuki and Kobukata, Yuko}, journal = {Tsukuba English Studies}, month = {Sep}, pages = {123--124}, title = {On a Condition on Occurrences of Prepositional Phrases as Subjects ()}, volume = {25}, year = {2006} }