000 00419nam a2200181 4500
020 _a
_c
082 _aBV PRL 1977.68B-69B(01-05)
100 _a
245 _aPhysical review letters, 1977, Vol.68B-69B, No.01-05
250 _a
260 _aAmerican Physical Society, New York
_c1977
300 _a524
490 _a
500 _a
590 _aVMV
_b
_c
650 _aPhysical review letters
942 _cBK
999 _c478235
_d478235