000 00304nam a22001097a 4500
008 230830b |||||||| |||| 00| 0 eng d
022 _a0040-4039
040 _aNational Science Library
_cNational Science Library
245 _aTetrahedron letters
260 _aOxford,
_bPergamon Press:
942 _cCR
_2udc
999 _c59988
_d59988