@article{oai:tsukuba.repo.nii.ac.jp:00007329,
 author = {Zamma, Hideki},
 journal = {Tsukuba English Studies},
 month = {Sep},
 pages = {1--23},
 title = {English Cluster Simplification and Optimality Theory : A Critique of Lexicon Optimization and Richness of the Base},
 volume = {17},
 year = {1998}
}