00250nam a2200085Ia 4500008004100000082001700041245006100058260002900119700001600148220204s9999    xx            000 0 und d  a547.556bPAT 0aChemistry of the hydrazo, azo and azoxy groups. Pt 1 & 2  aLondonbJohn Wileyc1975  aPatai, Saul