000 00435nam a2200181 4500
020 _a
_c
082 _aBV JPA 1972.05(07-12)
100 _a
245 _aJournal of physics A: Mathematical and general, 1972, Vol.05, No.07-12
250 _a
260 _aInstitute of Physics Publishing, Bristol
_c1972
300 _a1756
490 _a
500 _a
590 _aVMV
_b
_c
650 _aJournal of physics A
942 _cBK
999 _c476910
_d476910