@article{oai:ir.kagoshima-u.ac.jp:00012479,
 author = {TOGASHI, Akira and 富樫, 昭 and SAKAI, Manabu and 酒井, 宦},
 journal = {鹿児島大学理学部紀要. 数学・物理学・化学, Reports of the Faculty of Science, Kagoshima University. Mathematics, physics, chemistry},
 month = {Dec},
 pages = {23--29},
 title = {CONVEX APPROXIMTION TO CONVEX DATA},
 volume = {23},
 year = {1990}
}