@article{oai:shoin.repo.nii.ac.jp:00000009, author = {Emonds, Joseph}, journal = {Theoretical and applied linguistics at Kobe Shoin : トークス}, month = {Mar}, note = {60330429}, pages = {1--22}, title = {Formatting Lexical Entries : Interface Optionality and Zero}, volume = {5}, year = {2002} }