@phdthesis{oai:tsukuba.repo.nii.ac.jp:00020935,
 author = {明, 媚},
 month = {},
 note = {2005, Includes bibliographical references},
 school = {筑波大学, University of Tsukuba},
 title = {Production of physiologically active chitosan oligosaccharides at high concentration by immobilized chitosanase},
 year = {2006}
}