@article{oai:iwate-u.repo.nii.ac.jp:00012402,
 author = {佐伯, 卓也},
 journal = {岩手大学学芸学部研究年報},
 month = {Jun},
 pages = {5--10},
 title = {ON DIFFERENTIABLE FIBRE BUNDLES WITH A CERTAIN FIELD},
 volume = {18},
 year = {1961}
}