000
00292nam a2200109Ia 4500
008
201121s9999 xx 000 0 und d
100
_a
Kotani, M
245
0
_a
Proceeding of theoritical Physics
260
_b
Japan Research Institute for Fundamental Physics
300
_c
1993
942
_c
BV
999
_c
16478
_d
16478