@article{oai:ir.kagoshima-u.ac.jp:00001775,
 author = {AOYAMA, K and 青山, 究},
 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 = {1--6},
 title = {Several examples of system of fundamental sequences to show a connection among the built-up systems},
 volume = {22},
 year = {1989}
}