@article{oai:ynu.repo.nii.ac.jp:00006753,
 author = {Homma, Tatsuo and Nagase, Teruo},
 issue = {1&2},
 journal = {Yokohama Mathematical Journal = 横濱市立大學紀要. D部門, 数学},
 month = {},
 note = {application/pdf},
 pages = {103--119},
 title = {ON ELEMENTARY DEFORMATIONS OF MAPS OF SURFACES INTO 3-MANIFOLDS I},
 volume = {33},
 year = {1985}
}