@article{oai:iwate-u.repo.nii.ac.jp:00012401,
 author = {石川, 栄助},
 journal = {岩手大学学芸学部研究年報},
 month = {Jun},
 pages = {1--4},
 title = {逐次近似公式について},
 volume = {18},
 year = {1961}
}