000 00502nam a22001697a 4500
005 20230303095009.0
008 230303b |||||||| |||| 00| 0 eng d
020 _a3-540-64840-2
041 _aeng
082 _a547.59
_bGUP/H
100 _aGupta, R. R.
245 _aHeterocyclic chemistry
_bVol:1 Principles, three- and four-membered heterocycles
_cby R.R. Gupta, M. Kumar and V. Gupta
260 _aBerlin
_bSpringer
_c1998
300 _ax, 422p.
650 _aHeterocyclic chemistry
942 _cBK
999 _c14674
_d14674