000 00283nam a22001097a 4500
003 OSt
008 230916b |||||||| |||| 00| 0 eng d
100 _aKatritzky, A. R.
245 _aAdvances in Heterocyclic Chemistry - Vol.12
260 _aNew York
_bAc. Press
_c1970
942 _2ddc
_cBK
999 _c31861
_d31861