@phdthesis{oai:tsukuba.repo.nii.ac.jp:00021081,
 author = {立堀, 道昭 and Tatsubori, Michiaki},
 month = {},
 note = {2001, Includes bibliographical references},
 school = {筑波大学, University of Tsukuba},
 title = {A class-object model for program transformations},
 year = {2002}
}