000 00533nam a2200205Ia 4500
001 757
008 140213s9999 xx 000 0 und d
020 _a0127117016 (v. 1)
050 _aQD405
050 _b.V36-1973
100 _aPlas, H. C. van der.
245 _aRing transformations of heterocycles
245 _cPlas, H. C. van der.
260 _aLondon; New York,
260 _bAcademic Press,
260 _c1973
300 _a2 v.
650 _aHeterocyclic compounds.; Ring formation (Chemistry)
942 _cBK
999 _c121957
_d121957