1. 2. 3. 4. 5. 6.
12 1218 1824
()
(1975)
1. 2. 3. 4.
1. 2. 3. 4. 5.
(1996)
5
PDS
(A)
A (1) A (2)
(B) IQ31
T C
50
ITP
http://www.ed.niigata-u.ac.jp/~nagasawa/